diff --git a/lib/iban-tools/conversion_rules.yml b/lib/iban-tools/conversion_rules.yml
index 9076a76..f19595d 100644
--- a/lib/iban-tools/conversion_rules.yml
+++ b/lib/iban-tools/conversion_rules.yml
@@ -62,6 +62,10 @@
   bank_code: 4!a
   account_number: 14!c
 
+'BJ':
+  bank_code: 2!c
+  account_number: 22!n
+
 'CH':
   bank_code: 5!n
   account_number: 12!c
diff --git a/lib/iban-tools/rules.yml b/lib/iban-tools/rules.yml
index 5b1725b..7fd942c 100644
--- a/lib/iban-tools/rules.yml
+++ b/lib/iban-tools/rules.yml
@@ -45,6 +45,11 @@
   length: 22
   bban_pattern: '[A-Z]{4}[A-Z0-9]{14}'
 
+'BJ':
+  # Benin
+  length: 28
+  bban_pattern: '[A-Z0-9]{2}[0-9]{22}'
+
 'BR':
   # Brazil
   length: 29
diff --git a/spec/iban-tools/conversion_spec.rb b/spec/iban-tools/conversion_spec.rb
index d66e472..2db66a4 100644
--- a/spec/iban-tools/conversion_spec.rb
+++ b/spec/iban-tools/conversion_spec.rb
@@ -13,6 +13,7 @@ module IBANTools
       'BE68539007547034' => {bank_code: '539', account_number: '75470', check_digits: '34'},
       'BG80BNBG96611020345678' => {bank_code: 'BNBG', branch_code: '9661', account_type: '10', account_number: '20345678'},
       'BH67BMAG00001299123456' => {bank_code: 'BMAG', account_number: '1299123456'},
+      'BJ66BJ0610100100144390000769' => {bank_code: 'BJ', account_number: '610100100144390000769'},
       'CH9300762011623852957' => {bank_code: '762', account_number: '11623852957'},
       'CY17002001280000001200527600' => {bank_code: '2', branch_code: '128', account_number: '1200527600'},
       'CZ6508000000192000145399' => {bank_code: '800', account_prefix: '19', account_number: '2000145399'},
diff --git a/spec/iban-tools/iban_spec.rb b/spec/iban-tools/iban_spec.rb
index 888070f..357efb6 100644
--- a/spec/iban-tools/iban_spec.rb
+++ b/spec/iban-tools/iban_spec.rb
@@ -102,6 +102,7 @@ module IBANTools
         "BE68539007547034",
         "BG80BNBG96611020345678",
         "BH67BMAG00001299123456",
+        "BJ66BJ0610100100144390000769",
         "BR9700360305000010009795493P1",
         "CH9300762011623852957",
         "CY17002001280000001200527600",