- Ma'aging [maag1237]
- Ma'du [madu1246]
- Maaloula [malu1250]
- Mabahn [maba1271]
- Maberem [sunu1238]
- Mabi [mabi1238]
- Mablei [mabl1237]
- Maboko [mabo1238]
- Mabuyag [mabu1248]
- Macaguane del Colorado [maca1266]
- Macaguane del Cuiloto [maca1265]
- Macaísta [maca1263]
- Macedonian Greek [mace1251]
- Macharia [mach1263]
- Machiani [mach1270]
- Machvano [mach1262]
- Macleod Ganj [macl1238]
- Macquarie Harbour [macq1234]
- Macú-Paraná Cacua [macu1261]
- Madahaddi [mada1244]
- Madai Gang [mada1280]
- Madaka [mada1283]
- Madani [mada1297]
- Madar [mada1286]
- Madarrpa [mada1281]
- Madean-Viñac [made1254]
- Madeira-Azores [made1251]
- Madhavpur [madh1243]
- Madhesi [madh1242]
- Madhi Madhi [madh1244][dmd]
- Madimadoko [madi1259]
- Madipia [madi1258]
- Madiunan [madi1264]
- Madka-Kinwat [madk1237]
- Mado [mado1239]
- Madrasi [madr1237]
- Madre de Dios Yine [madr1239]
- Madyay [mady1238]
- Mae Ping [maep1238]
- Mae Sarieng [maes1238]
- Mae [maee1242]
- Maerkang [maer1238]
- Mafilito [mafi1234]
- Maga [maga1265]
- Magadhan Pali [maga1272]
- Magam [maga1262]
- Magara [maga1269]
- Magbiambo [magb1238]
- Magobineng [mago1249]
- Magoumaz [mago1253]
- Magpet Manobo [magp1237]
- Magra Ki Boli [magr1238]
- Mahaa [maha1297]
- Mahabad [maha1304]
- Mahafaly [maha1311]
- Mahakam Busang [maha1298]
- Mahakulung [maha1294]
- Mahalati [maha1312]
- Mahali (Iran) [maha1286]
- Mahali (Santali) [maha1292]
- Mahallati [maha1310]
- Mahanji [maha1296]
- Maharashtra Lamani [maha1288]
- Mahari (Konkani) [maha1290]
- Mahari [maha1289]
- Mahas [maha1295]
- Mahottari [maho1247]
- Mahouka [maho1250]
- Mahuan [mahu1237]
- Maiabare [maia1252]
- Maibén [masi1272]
- Maiduguri [maid1261]
- Maiha [maih1239]
- Maijdi [maij1234]
- Maimaka [maim1251]
- Maingtha [main1270]
- Mainland Antankarana [main1284]
- Mainland Northern Frisian [main1285]
- Mainoki [main1276]
- Mainypilgino [main1271]
- Maipure [maip1246]
- Maisawiet [mais1251]
- Maisefa [mais1252]
- Maitai-Jiingi [miti1241]
- Maitaria [mait1251]
- Maite [mait1252]
- Maitsi [mait1253]
- Maiwa [maiw1252]
- Maiyah [maiy1240]
- Maizuru [maiz1237]
- Majalengka Sundanese [maja1243]
- Majene [maje1237]
- Majh-Kumaiya [majh1251]
- Majhi (Panjabi) [majh1252]
- Majhi-Korwa [majh1254]
- Majingai [maji1238]
- Majngapilgino [majn1234]
- Maju Mandobo [maju1236]
- Majunga [maju1234]
- Mak [makk1244]
- Makada [maka1306]
- Makaheeliga [maka1309]
- Makale (Indonesia) [maka1312]
- Makale [maka1302]
- Makanjaula [maka1325]
- Makaraka [maka1301]
- Makari [maka1322]
- Makariki [maka1308]
- Makasai [maka1317]
- Makatao [maka1313]
- Makatian [maka1307]
- Make [make1249]
- Makeke [make1248]
- Makere [make1250]
- Makhuwana [makh1263]
- Makiang [maki1248]
- Maklere [makl1245][mjb]
- Makoda [mako1252]
- Makoma [mako1253]
- Makpa [makp1238]
- Makrana [makr1244]
- Makrani [makr1243]
- Makura [maku1276]
- Makutana [maku1275]
- Makutu [maku1274]
- Makyam Naga [maky1236]
- Mala Pulayan [mala1462]
- Mala [mala1473]
- Malabar [mala1465]
- Malabu (Bata) [mala1531]
- Malabu [mala1532]
- Malagheti [mala1483]
- Malai [mala1488]
- Malakanagiri Koya [mala1469]
- Malakka Besisi [mala1455]
- Malal [mala1470]
- Malalulu [mala1474]
- Malamba [mala1472]
- Malang-Pasuruan [mala1493]
- Malanga [mala1389]
- Malatya [mala1453]
- Malay (Ati) [mala1492]
- Malay Aklanon [mala1491][mlz]
- Malaya Tamil [mala1467]
- Malayadiars [mala1460]
- Malayeri [mala1553]
- Malaysian English [mala1551]
- Malecite [male1293]
- Malekshahi [male1280]
- Malele [male1283]
- Malen-Utwe [male1285]
- Maleu [male1290]
- Malhi [malh1242]
- Malibcong Banao [mali1281]
- Malieng [mali1278]
- Maligan [mali1282]
- Maliki [mali1277]
- Malimiutun [mali1289]
- Malinaltepec [mali1286]
- Mallango [mall1247]
- Mallorquí [mall1248]
- Malngin [maln1239]
- Malo [malo1246]
- Malom [malo1244]
- Maltese English [malt1247]
- Malu (Central African Republic) [molo1258]
- Malua Bay [malu1254]
- Malual [malu1244]
- Malunda [malu1246]
- Malung [malu1253]
- Malvi Proper [malv1244]
- Malwa [malw1235]
- Malyangapa [maly1234][yga]
- Mamala [mama1274]
- Mamalgha Munji [mama1270]
- Mamangathi [mamn1244]
- Mamasani [mama1269]
- Mamba (Democratic Republic of Congo) [mamb1295]
- Mamba [mamb1298]
- Mambai (East Timor) [mamb1307]
- Mambangura [mamb1292]
- Mambe' [mamb1293]
- Mambi [mamb1308]
- Mambisa [mamb1303]
- Mambump [mamb1304]
- Mambwe [mamb1297]
- Mamna'a [mamn1243]
- Mampoko [mamp1245]
- Mamu [mamu1253]
- Mamulique [mamu1257][emm]
- Man [mann1247]
- Managobla [mana1289]
- Manala [mana1304]
- Manang [mana1290]
- Mananga [mana1296]
- Manangeer [mana1292]
- Manawadji [mana1291]
- Manawi [mana1293]
- Manchurian Evenki [manc1253]
- Manda (Venda) [mand1421]
- Manda [mand1478]
- Mandaba [mand1429]
- Mandala [mand1428]
- Mandalay-Yangon [mand1476]
- Mandiakuy [mand1420]
- Mandjalpingu [mand1418]
- Mandla (Dravidian) [mand1414]
- Mandla [mand1422]
- Mando [mand1438]
- Manduka [mand1447]
- Mandura [mand1427]
- Mandura-Dibate-Metemma [mand1426]
- Mandusir [mand1439]
- Mandyam Brahmin [mand1410]
- Mane [mane1239]
- Manehas [mane1262]
- Maneo [mane1264]
- Maneta [mane1265]
- Mang (Chad) [mang1397]
- Mang (Nigeria) [mang1386]
- Manga [mang1400]
- Mangaia [mang1402]
- Mangalili [mang1384]
- Mangalore Kannada [mang1438]
- Mangalore-Literary Kannada [mang1437]
- Manganitu [mang1409]
- Manganja [mang1391]
- Mangehele [mang1389]
- Mangei [mang1407]
- Manggalili [mang1385]
- Mangili-Waijelo [mang1406]
- Mangkaak [mang1410]
- Mangkalihat [mang1439]
- Mangki [mang1411]
- Mangkong [mang1379]
- Mangoche [mang1390]
- Mangole [mang1408][mqc]
- Mangum [mang1388]
- Maniao [mani1307]
- Manicaland Zimbabwe Sign [mani1306]
- Manigara [mani1298]
- Manila [mani1245]
- Maningrida Auxiliary Sign Language [mani1310]
- Maniot Greek [mani1305]
- Maniot-Cargese Greek [mani1304]
- Manitoba Plautdietsch [mani1309]
- Manitoban Chortitza [mani1308]
- Manjhi (Santali) [manj1249]
- Manjhi [manj1248]
- Manjiya [ulub1244]
- Mankaliya [mank1254]
- Mankayan-Buguias [mank1255]
- Mankim [mank1252]
- Mankon [mank1253]
- Mankovo Khamnigan Mongol [mank1257]
- Manna-Dora [mann1245][mju]
- Manoki [iran1264]
- Manouche [mano1274]
- Mansa' [mans1267]
- Mansfeld German [mans1257]
- Mansinyo [mans1263]
- Mantangai [mant1270]
- Mantararen [mant1269]
- Mantauran [mant1271]
- Mantovano [mant1264]
- Mantra [mant1268]
- Manu [manu1264]
- Manua [manu1259]
- Manujani [manu1265]
- Manx English [manx1244]
- Manyallaluk Mayali [naia1238]
- Manyarring [many1257]
- Manyjilyjara [many1256]
- Manyok [many1260]
- Manzala [manz1244]
- Mao (Nigeria) [maoo1245]
- Mao [maoo1244]
- Maopa [maop1237]
- Maore [maor1245]
- Mapanga [mapa1243]
- Mape-East [fuka1239]
- Mape-West [nucl1610]
- Mapia (Biak) [mapi1249]
- Mapiya-Kegata [mapi1251]
- Mapos [mapo1243]
- Maprik [mapr1240]
- Mar Bishu [marb1243]
- Mara (Central Sudanic) [mara1395]
- Mara (Malgbe) [mara1413]
- Mara-Gomu [mara1405]
- Maraba [mara1389]
- Maracha [mara1394]
- Maralango [mara1402]
- Marale [mara1390]
- Maram Khullen Circle [mara1380]
- Maramuni [mara1406]
- Maramuresh [mara1372]
- Marangai [mara1400]
- Marangu [mara1391]
- Marapu [mara1401]
- Marara [mara1388]
- Marari [mara1376]
- Marash-Zeytun [mara1419]
- Marashi [mara1375]
- Marau Sound [mara1398]
- Maraz [mara1420]
- Marchha (India) [marc1245]
- Marda [mard1244]
- Mardin Plains [mard1249]
- Mardin Town [mard1247]
- Mardin Villages [mard1248]
- Mardinic [mard1246]
- Mare-Ammu [mare1239]
- Marebbano [mare1258]
- Maregaon [mare1259]
- Marensé [mare1257]
- Marheti [marh1238]
- Maria [mari1439]
- Mariam Mandobo [mari1449]
- Mariam [mari1450]
- Mariaté [mari1451]
- Marie Galante Creole French [mari1444]
- Marigl [mari1436]
- Marikai [mari1434]
- Marin Miwok [mari1441]
- Marinahua [mari1443]
- Marinduque [mari1431]
- Maringe [mari1427]
- Maritime Gagauzi [mari1413]
- Maritime Provençal [mari1412]
- Mariupol Greek [mari1411]
- Marke [mark1254]
- Markweta-Chesongoch [mark1258]
- Marlu-papu-nganha [marl1234]
- Maros-Pangkep [maro1245]
- Maroua Fulfulde [maro1243]
- Marpha [marp1238]
- Marrakech [marr1264]
- Marrakulu [marr1258]
- Marrangu [marr1259]
- Marri Yedi [marr1241]
- Marri [marr1268]
- Marritjabin [marr1240]
- Marrucinian [marr1267]
- Marry [marr1260]
- Marseille Sign Language [mars1235]
- Marsh French [mars1252]
- Marsian [mars1253]
- Martiang [mart1253]
- Martinique Creole French [mart1259]
- Maruat-Dimiri-Yaul [maru1253]
- Marub [maru1250]
- Marwari Bhat [marw1258]
- Marwari Bhil [marw1259]
- Marwari Meghwar [marw1257]
- Marya Qayah [mary1234]
- Marya Sallam [mary1235]
- Marzvan-Amasia [marz1234]
- Masadiit Boliney [masa1308]
- Masadiit Sallapadan [masa1309]
- Masakin Gusar [masa1302]
- Masakin Tuwal [masa1303]
- Masaku [masa1295]
- Masaká [masa1312]
- Masama [masa1296]
- Masan Awa [masa1328]
- Masan [masa1310]
- Masapua [masa1306]
- Masarete [masa1305]
- Masarmi [masa1326]
- Masawa [masa1304]
- Masemola [mase1248]
- Masev-Hyarev [mase1251]
- Masfeima [masf1235]
- Mashalit [mash1273]
- Mashasha [mash1265]
- Mashati [mash1266]
- Mashhadi Persian [mash1274]
- Mashi [mash1268]
- Mashonaland Zimbabwe Sign [mash1272]
- Mashtada [mash1276]
- Masikoro-Miary [masi1273]
- Masimasi (Yamalele) [masi1264]
- Masingbi [masi1263]
- Masingle [masi1270]
- Masinloc [masi1267]
- Masiri [masi1269]
- Massagal [mass1267]
- Massali [mass1260]
- Massaninga [mass1261]
- Massawa [mass1268]
- Mastanahua [mast1238]
- Masulei [masu1234]
- Masvingo School Sign [masv1236]
- Mataban-Moulmein [mata1282]
- Mataitai [mata1284]
- Matalaang [mata1285]
- Matambwe [mata1313][wtb]
- Matangnga [mata1286]
- Matanvat [mata1314]
- Matapo [mata1283]
- Mataraman [temb1273]
- Mataso [mata1250]
- Matawai [mata1310]
- Matchi [matc1241]
- Matchin [matc1242]
- Mate [mate1257]
- Mate-Nul-Filakara [mate1259]
- Matebeleland Zimbabwe Sign [mate1262]
- Matema [mate1237]
- Materi [mate1256]
- Mathira [math1238]
- Matia [mati1252]
- Matig-Salud [mati1251]
- Matlala-Moletshi [matl1257]
- Matliwag [matl1238]
- Matondoni [mato1251]
- Matsungan [mats1242]
- Mattole [matt1239]
- Matu Melanau [matu1262]
- Matu [matu1264]
- Matu'aw [matu1265]
- Matu'uwal [mayr1237]
- Matumba [matu1257]
- Matupi Daai [matu1256]
- Matupit [matu1260]
- Matwanly [matw1238]
- Maubin [maub1238]
- Maukauro [mauk1239]
- Mauke [mauk1238]
- Maumbi [maum1238]
- Mauritian Bhojpuri [maur1239]
- Maurom [maur1241]
- Maututu [maut1237]
- Maviha [mavi1238]
- Mavoumay [mavo1238]
- Mawae [mawa1265]
- Mawasangka [mawa1264]
- Mawasi [mawa1263]
- May [mayy1239]
- Mayak [maia1240]
- Mayang [maya1277]
- Mayar [maya1278]
- Mayeka [maye1238][myc]
- Mayi-Kulan [mayi1236][xyk]
- Mayi-Thakurti [mayi1234][xyt]
- Mayi-Yapi [mayi1235][xyj]
- Mayo Djarendi-Mandi [mayo1279]
- Mayo-Yessan [mayo1263]
- Mayongong [mayo1265]
- Mayu [mayu1240]
- Mazagwa [maza1303]
- Mazari [maza1310]
- Maïngao [main1274]
- Mañegu [mane1261]
- Mbaan [mbaa1246]
- Mbaaru [mbaa1250]
- Mbadja [mbad1234]
- Mbagani [mbag1238]
- Mbah [mbah1238]
- Mbai (Northwest Gbaya) [mbai1247]
- Mbai [mbai1249]
- Mbaise [mbai1248]
- Mbaka [mbak1242]
- Mbalanhu [mbal1262]
- Mbale [mbal1256]
- Mballa [mbal1258]
- Mbalundu [mbal1261]
- Mbamaka-Tapi [mbam1255]
- Mbamba [mbam1248]
- Mbandieru [mban1265]
- Mbang [mban1266]
- Mbanua [mban1270]
- Mbanyö [mban1269]
- Mbar [mbar1262]
- Mbara (Australia) [mbar1261]
- Mbaru [mbar1255]
- Mbat (Nigeria) [mbat1251]
- Mbat [mbat1250]
- Mbati of Mbaïki [mbat1249]
- Mbedzi [mbed1238]
- Mbeere [mbee1248]
- Mbeki Ajiri [mbec1238]
- Mbele-Cenga-Bonjo [mbel1241]
- Mbere (Mboum) [mber1254]
- Mbere (Northwest Gbaya) [mber1255]
- Mberem [mber1261]
- Mbi [mbii1238]
- Mbibji [mbib1238]
- Mbida-Bani [mbid1238]
- Mbila [mbil1239]
- Mbinga [mbin1238]
- Mbire [mbir1238]
- Mbizenaku [mbiz1238]
- Mblafe [mbla1238]
- Mbobyeng [mbob1238]
- Mbojo [mboj1237]
- Mboka [mbok1242]
- Mbol Fle [mbol1235]
- Mbololo [mbol1248]
- Mbonge [mbon1250]
- Mbonjoku [mbon1251]
- Mboto [mbot1238]
- Mboum [mbou1244]
- Mbour [segu1238]
- Mbowela [mbow1244]
- Mbowid [mbow1247]
- Mbre (Banda-Mbres) [mbre1245]
- Mbrerewi [mbre1246]
- Mbukambero [mbuk1241]
- Mbula (Atlantic-Congo) [mbul1261]
- Mbuli [mbul1259]
- Mbumi [mbum1255]
- Mbutu [mbut1238]
- Mbwaanz [mbwa1238]
- Mbwila [mbwi1238]
- Mbyam [mbya1238]
- Mdundulu [mdun1238]
- Mdzorganrabar [mdzo1234]
- Mea [meaa1237][meg]
- Mecatlán [meca1234]
- Mech [mech1238]
- Mecha [mech1243]
- Mecklenburg-Vorpommern [meck1238]
- Mecklenburgish [meck1239]
- Medieval Latin [medi1250]
- Medo [medo1241]
- Medogo [medo1242]
- Mee [meee1238]
- Meeka [meek1238]
- Megara [mega1242]
- Megeb [mege1234]
- Meghri [megh1234]
- Megi [megi1246]
- Megiar [megi1245]
- Megne [megn1236]
- Mehalaan [meha1242]
- Mehari [meha1241]
- Mehtishen [meht1234]
- Meibuil [meib1238]
- Meifu [meif1236]
- Meiliang [meil1234]
- Mein [mein1238]
- Meissnisch [meis1234]
- Meitei [meit1246]
- Meixian [yuet1238]
- Meiyari [meiy1238]
- Meje [meje1239]
- Mekongga [meko1237]
- Mel (Cambodia) [melc1234]
- Melaka Malay [mela1261]
- Melamchi Yolmo [east2343]
- Melan So [mela1253]
- Melangvala-Bakalang [baka1276]
- Melayu Sini [mela1259]
- Melayu Ulu Kapuas [mela1260]
- Mele Maat [mele1255]
- Mele Nadu Irula [mele1247]
- Mele [mele1251]
- Melet Middle Chulym [mele1253]
- Melete [mele1248]
- Melilup [meli1237]
- Melkhin [melk1240]
- Melkoi [melk1241]
- Melokwo [melo1244]
- Melolo [melo1243]
- Melong [melo1241]
- Melung [melu1236]
- Membi [memb1238]
- Mena [mena1240]
- Mendankwe [mend1262]
- Menemo [mene1239]
- Mengau [meng1271]
- Mengda [meng1262]
- Menggala [meng1269]
- Menggatal [meng1270]
- Mengisa [meng1263][mct]
- Mengkatip [meng1268]
- Mengum [meng1265]
- Meni [meni1246]
- Menno Plautdietsch [menn1234]
- Meno-Mene [meno1251]
- Menorquí [meno1253]
- Mentasta [ment1252]
- Mentebah-Suruk [ment1247]
- Mentuh Tapuh [ment1250]
- Menui [menu1237]
- Menya (Uganda) [meny1244]
- Menzime [menz1238]
- Mer (Bench) [merr1238]
- Meranjat [mera1244]
- Merap [mera1243]
- Mercian [merc1243]
- Merdeka [merd1234]
- Mereic Gula [mere1247]
- Merina [meri1243]
- Mernyang [mirr1240]
- Mesara [mesa1246]
- Mesari [mesa1247]
- Mesekol [mese1245]
- Mesi [mesi1243]
- Mesiang [mesi1244]
- Mesise [mesi1242]
- Meskhur-Javakhuri [mesk1241]
- Meskwakie [mesk1243]
- Messa-Dote [mess1248]
- Messeni [takp1245]
- Messinese [mess1247]
- Metalsa [meta1239]
- Metemma [mete1238]
- Metla-Kinwat [metl1237]
- Metmata [metm1234]
- Metnyo [metn1237]
- Metomka [meto1239]
- Metsam [mets1238]
- Meudana [meud1237]
- Mewasi [mewa1248]
- Mewati (Haryanvi) [mewa1251]
- Mexican Spanish [mexi1248]
- Meyma'i [meym1234]
- Mezimko [mezi1238]
- Mfe [mfee1238]
- Mfengu [mfen1238]
- Mfuome [mfuo1234]
- Mgao [mgao1238]
- Mgbenege [obos1238]
- Mgbo [mgbo1238][gmz]
- Mhallami [mhal1238]
- Mhari [mhar1238]
- Mi Mijivin [mimi1245]
- Miadeba [miad1237]
- Miag-Ao [miag1237]
- Miamu [miam1251]
- Mianchi Qiang [mian1253]
- Mianmin [mian1257]
- Mianning Lizu [mian1258]
- Miarso [miar1237]
- Mica [mica1243]
- Micari [mica1242]
- Mid Dumfries Scots [midd1361]
- Mid Mortlock [midm1238]
- Mid Northern Scots [midn1242]
- Mid Scots [mids1245]
- Mid-Atlantic American English [mida1234]
- Mid-East Sundanese [cire1239]
- Mid-North Lower East Franconian [midn1241]
- Mid-South Welsh English [mids1244]
- Mid-Wahgi [midw1243]
- Middle Amur Dagur [midd1365]
- Middle Armenian [midd1364]
- Middle Assyrian [midd1371]
- Middle Babylonian [midd1370]
- Middle Breton [midd1359]
- Middle Cornish [midd1380]
- Middle Egypt [midd1332]
- Middle Egyptian [midd1369]
- Middle Estonian [midd1322]
- Middle Even [midd1358]
- Middle French [midd1316][frm]
- Middle Greek [midd1362]
- Middle Irish (10-12th century) [midd1360][mga]
- Middle Kheng [midd1326]
- Middle Khmer [midd1376][xhm]
- Middle Konda [midd1374]
- Middle Korean [midd1372]
- Middle Kuskokwim Ingalik [midd1368]
- Middle Lozva [midd1373]
- Middle Ob Khanty [midd1353]
- Middle Sysola [midd1378]
- Middle Vychegda [midd1377]
- Middle Welsh [midd1363]
- Mideastern Yiddish [mide1238]
- Midiki [midi1237]
- Midin [midi1241]
- Midlaliri [midl1244]
- Midland American English [midl1243]
- Midlands Zimbabwe Sign [midl1242]
- Midnapore Oriya [midn1239]
- Midu [midu1234]
- Midwestern Yiddish [midw1242]
- Midyat [midy1238]
- Mie [miee1237]
- Mienge [mien1244]
- Migueleño Salinan [migu1236]
- Miguri [migu1234]
- Mihrijan [mihr1234]
- Mijaranypa [mija1241]
- Mijaranés Aranés [mija1240]
- Mikawa [mika1255]
- Mikea [mike1243]
- Mikebwe [mike1238]
- Mikere [mike1242]
- Mikik [miki1243]
- Mikiri-nganha [miki1244]
- Miko [miko1239]
- Miku [miku1234]
- Milanese [mila1243]
- Mildjingi [mild1238]
- Milo [milo1241]
- Mima [mima1238]
- Mina Mina Gorong [mina1270]
- Mina [mina1273]
- Minabi [mina1282]
- Minabic [mina1281]
- Minangali [mina1271]
- Minbu [minb1243]
- Minda [mind1254]
- Mindanao Visayan [mind1257]
- Mindanao [mind1256]
- Mindéra [mind1262]
- Mineo [mine1239]
- Mingad [ming1257]
- Mingar [ming1256]
- Mingbari [ming1253]
- Mingxi [ming1255]
- Miniafia [mini1252]
- Minifire [mini1259]
- Minir [mini1250]
- Minjangbal [minj1242]
- Minjori [minj1241]
- Minna [minn1249]
- Minnesota Border Chippewa [minn1250]
- Mino [mino1244]
- Minto-Tolovana-Toklat-Nenana-Wood River [mint1240]
- Minungo [minu1238]
- Minyak Rabgang [miny1241]
- Minyong [miny1239]
- Mios Num [mios1237]
- Miramar Chontal [mira1253]
- Miraski [mira1252]
- Miratayak [mira1256]
- Miraña [mira1254]
- Mirdha-Kharia [mird1238]
- Miri (Arunachal Pradesh) [miri1271]
- Miri (Malaysia) [miri1269]
- Miri [miri1267]
- Miriei [miri1268]
- Miringi [miri1272]
- Mirkuk [mirk1238]
- Mirlong [mirl1238]
- Mirniny [mirn1245][gmr]
- Mirpur Panjabi [mirp1238][pmu]
- Mirripu [mirr1241]
- Mirzapuri [mirz1238]
- Mishulundu [mish1242]
- Misim [misi1244]
- Mising [miny1240]
- Miskolc [misk1242]
- Misles [misl1238]
- Misman [mism1239]
- Missong [miss1255]
- Missouria [miss1249]
- Mithu [mith1237]
- Mitiaro [miti1242]
- Mittelmärkisch [mitt1255]
- Mittelpommersch [east2293]
- Mittelschlesische [mitt1254]
- Miutini [miut1238]
- Mixe de San Juan Cotzocón [mixe1283]
- Mixed Great Andamanese [mixe1288][gac]
- Mixistlan [mixi1242]
- Miyako-Jima [miya1260]
- Miyatnu [miya1257]
- Miyazaki-ben [miya1258]
- Miyemu [miye1238]
- Miza [miza1238]
- Mizmast [mizm1238]
- Mizulo [mizu1238]
- Mkharmar [mkha1234]
- Mkuu [mkuu1238]
- Mkwet [mkwe1238]
- Mlalo [mlal1234]
- Mmani [mman1238]
- Mmok [mmok1234]
- Mnong Gar [mnon1261]
- Mnong Kwanh [mnon1260]
- Mnong Rolom [mnon1262]
- Mo'e [moee1234]
- Mo'or [moor1246]
- Moa [moaa1237]
- Moabite [moab1234][obm]
- Mobou [mobo1238]
- Mochuelo-Casanare-Cuiba [moch1258]
- Mockfjärd [mock1234]
- Mod [modd1238]
- Modea [mode1250]
- Modele [mode1249]
- Modele-Ushaku [mode1269]
- Modern Baure [baur1256]
- Modern Castilian of Aragon [arag1246]
- Modern Cornish [mode1263]
- Modern Duoxu [duox1238]
- Modern Iñapari [inap1243]
- Modern Paraguayan Guarani [mode1267]
- Modin [modi1234]
- Modo [modo1248]
- Moesian [moes1234]
- Mofu (Biak) [mofu1239]
- Mogami [moga1249]
- Mogana [moga1246]
- Moganda [moga1247]
- Mogareb [moga1248]
- Moghal [mogh1248]
- Moghamo [mogh1246]
- Mogum Diguimi [mogu1254]
- Mogum Déle [mogu1253]
- Mogum Urmi [mogu1252]
- Mohihatetea [mohi1234]
- Mohmand [mohm1238]
- Mohrano [mohr1238]
- Mohung [mohu1238]
- Moi 1 [moii1253]
- Moi Asli [moia1234]
- Moi Segin [mois1234]
- Moi [moii1254]
- Moitanik [moit1238]
- Mokilko [moki1243]
- Mokkan Tila Sadri [mokk1242]
- Mokok [moko1257]
- Mokola [moko1255]
- Mokolo [moko1256]
- Mokong [moko1254]
- Mol (Vietnam) [moll1241]
- Moldavian [mold1248][mol]
- Moli [moli1247]
- Moliba [moli1246]
- Molisano [moli1245]
- Mollo-Miomafo [moll1242]
- Molo (Indonesia) [molo1261]
- Molo (Nyamusa-Molo) [molo1259]
- Molokan [molo1267]
- Molot [molo1260]
- Molotschna [molo1268]
- Molsom [mols1234]
- Moluche [molu1245]
- Molunga [molu1244]
- Mom Jango of Dan Wumba [nucl1355]
- Moma Even [moma1245]
- Mombe [momb1253]
- Momi Bati [momi1243]
- Momi Yadim [momi1241]
- Momveda [momv1238]
- Mon (India) [monn1253]
- Mon (Vietnam) [monn1251]
- Mondai [mond1270]
- Mondo [mond1263]
- Mondogossou [mond1264]
- Mong Leng [mong1333]
- Mongala Poto [mong1337]
- Mongar-Trashigang [mong1350]
- Mongbapele [mong1334]
- Mongo (Daju) [mong1340]
- Mongo (Kuranko) [mong1339]
- Mongo (Lusengo) [mong1336]
- Mongol (Papua New Guinea) [mong1348]
- Mongsen [mong1332]
- Monia [moni1259]
- Moning [moni1260]
- Monja [monj1234]
- Monkin [monk1234]
- Mono [mono1274]
- Monoarfu [mono1271]
- Monogoy [mono1279]
- Montauk [mont1269]
- Monte Verde Mixtec [mont1271]
- Montenegrin Standard [mont1282][cnr]
- Monzamboli [monz1250]
- Monzón [monz1251]
- Monégasque [mone1238]
- Mooma [moom1238]
- Moonde [moon1238]
- Moplah [mopl1237]
- Moqaddam [moqa1238]
- Moramål [mora1274]
- Morangia [mora1272]
- Morangiya [mora1271]
- Moravian Romani [mora1270]
- Morbo [morb1238]
- Moreb [more1254]
- Morela [more1257]
- Mori [mori1270]
- Morie [mori1266]
- Morigele [mori1265]
- Moriko [mori1277]
- Morin Daba Dagur [mori1279]
- Morioka [mori1272]
- Morley Stoney [sout2987]
- Morogata [moro1291]
- Moronou [moro1280]
- Morotai [moro1290]
- Morsephang [mors1234]
- Moruba [moru1251]
- Moruwa'di [moru1254]
- Mosieno [mosi1246]
- Mosul Arabic [mosu1235]
- Mosul Plain Christian Neo-Aramaic [mosu1234]
- Motiem [moti1240]
- Motki [motk1236]
- Motlav [motl1238]
- Moto-Mar [motm1238]
- Motozintleco [moto1243]
- Mougo [moug1238]
- Mouk [mouk1240]
- Mountain Cahuilla [moun1256]
- Mountain Slavey [moun1257]
- Movar [mova1237]
- Move [move1241]
- Mowor [mowo1238]
- Moxev [moxe1238]
- Moye [moye1235]
- Moyo [moyo1239]
- Mozome [mozo1238]
- Mpaka [mpak1240]
- Mpalitjanh [mpal1238][xpj]
- Mpama (Mongo) [mpam1238]
- Mparntwe Arrernte [mpar1238]
- Mpiin [mpii1240]
- Mpo [mpoo1238]
- Mpomam [mpom1238]
- Mpondo [mpon1252]
- Mpondomise [mpon1251]
- Mpongo [mpon1253]
- Mpongwe [mpon1255]
- Mpus [mpus1238]
- Mput [mput1234]
- Mpuun [mpuu1242]
- Mpyemo [mpye1238]
- Mrassa [mras1239]
- Mriak-Mriku [mria1237]
- Mrima [mrim1238]
- Mro [mroo1239]
- Mtezi [mtez1238]
- Mtiuletian-Gudamaqrian [mtiu1238]
- Mual [mual1240]
- Muaturaina [muat1238]
- Mubi (Foi) [mubi1239]
- Muckleshoot [muck1238]
- Mucunchi [mucu1234]
- Mudburra Auxiliary Sign Language [mudb1241]
- Muerzong [muer1238]
- Mufu [mufu1234]
- Mufwa [mufw1238]
- Mugali [muga1241]
- Mugange [muga1242]
- Mughaja [mugh1243]
- Mughalbandi [mugh1242]
- Mugin [mugi1235]
- Muguani [mugu1243]
- Muguji [mugu1242]
- Muher [muhe1234]
- Muhulu [muhu1242]
- Muhura [muhu1241]
- Muirin [muir1238]
- Muishaung [mosa1240]
- Mukah-Oya [muka1237]
- Muklom [mukl1235]
- Muko-Muko [muko1237][vmo]
- Mukri [mukr1239]
- Mukula (Zambia) [muku1240]
- Mulan [mula1255]
- Mulenge [mule1238]
- Mulgaon-Wangtang [mulg1243]
- Mulgi [mulg1249]
- Muli-Dabpa [mili1236]
- Mulia Dani [muli1236]
- Mulonga [mulo1238]
- Mulsom [muls1238]
- Multani [mult1243]
- Mulung [mulu1242]
- Mulyen [muly1238]
- Mumoni [mumo1239]
- Mumviri [mumv1239]
- Mundabli [mund1340]
- Mundum [mund1341]
- Mung [mung1263]
- Munga [mung1268]
- Mungba [mung1275]
- Munggava [mung1271]
- Mungiki [mung1270]
- Mungo [mung1265]
- Mungong [mung1267]
- Mungre [mung1264]
- Munib [muni1255]
- Munji (Papua New Guinea) [munj1245]
- Munjuk-Nord [munj1246]
- Munjuk-Sud [munj1247]
- Munken [munk1244]
- Munster-Leinster [muns1250]
- Muntenian [munt1238]
- Munumburru [munu1238]
- Munyo [muny1242]
- Munyuku [muny1238]
- Mupun [mupu1234]
- Mura [mura1277]
- Murasi [mura1270]
- Murato [mura1272]
- Murato-Chapra [mura1278]
- Murcian [murc1238]
- Murego-Gubden [mure1236]
- Muri [muri1258]
- Muromachi [muro1241]
- Murrinhdiminin [murr1260]
- Murrinhkura [murr1261]
- Murrinhpatha [murr1259]
- Murru [murr1262]
- Murrungun [murr1257]
- Murugu [muru1267]
- Murum [muru1268]
- Murung 2 [muru1269]
- Murut Padas [muru1272]
- Musahari [musa1261]
- Musaia [musa1264]
- Musar (Maithili) [musa1262]
- Musen [muse1238]
- Musgoi [musg1253]
- Mush Kurmanji [mush1241]
- Mush [muss1244]
- Mush-Tigranakert [mush1240]
- Mushere [mush1239]
- Mushungulu [mush1238][xma]
- Muskau [musk1257]
- Muslim Pontic Greek [musl1237]
- Musqueam [musq1240]
- Mussau [muss1248]
- Musselmani [muss1245]
- Musu [musu1243]
- Musukotwani [musu1242]
- Musumb [musu1241]
- Musunye [musu1240]
- Muthambi [muth1242]
- Mutidi [muti1238]
- Muturami [mutu1251]
- Muturuwa [mutu1250]
- Mutwang [mutw1238]
- Muxojeona [muxo1234]
- Muzuk [muzu1238]
- Mvae [mvae1238]
- Mvete [mvet1238]
- Mvita [mvit1238]
- Mvog-Niengue [mvog1242]
- Mvumbo [mvum1238]
- Mwalukwasia [mwal1238]
- Mwamba [mwam1244]
- Mwambong [mwam1246]
- Mwamenam [mwam1245]
- Mwanda [mwan1248]
- Mwani (Haya) [mwan1249]
- Mwenyi [mwen1238]
- Mweri [mwer1249]
- Mwerig [mwer1250]
- Mwesen [mwes1235]
- Mwi [mwii1234]
- Mwibara [mwib1234]
- Mwika (Vunjo) [mwik1238]
- Mwila [mwil1238]
- Mwimbi [mwim1242]
- Mwini [mwin1241]
- Mwomo Shilluk [mwom1234]
- Mycenaean Greek [myce1242]
- Myeik [merg1238]
- Mynso [myns1238]
- Mysian [mysi1239][yms]
- Mysore Kannada [myso1234]
- Mälarra [mala1552]
- Märkisch [bran1235]
- Mèlè (Central African Republic) [mele1249]
- Méré [mere1241]
- Mìjuu [miju1244]
- Mùdǐqīng Pumi [mudi1234]
- Múra [mura1273]
- Münkü [munk1243]
- Münsterlandisch [muns1252]
- Mədrəsə [arme1260]
- mBalhag [mbal1265]