diff --git a/netci.groovy b/netci.groovy
index 8eb44a0a4571..280ae5a24ca0 100755
--- a/netci.groovy
+++ b/netci.groovy
@@ -14,12 +14,9 @@ def static getOSGroup(def os) {
         'RHEL7.2': 'Linux',
         'Ubuntu16.04': 'Linux',
         'Debian8.2':'Linux',
-        'Fedora23':'Linux',
         'OSX':'OSX',
         'Windows_NT':'Windows_NT',
-        'FreeBSD':'FreeBSD',
         'CentOS7.1': 'Linux',
-        'OpenSUSE13.2': 'Linux',
         'LinuxARMEmulator': 'Linux']
     def osGroup = osGroupMap.get(os, null) 
     assert osGroup != null : "Could not find os group for ${os}"
@@ -32,8 +29,8 @@ class Constants {
     // The Windows_NT_BuildOnly OS is a way to speed up the Non-NT builds temporarily by avoiding
     // test execution in the build flow runs.  It generates the exact same build
     // as Windows_NT but without the tests.
-    def static osList = ['Ubuntu', 'Debian8.2', 'OSX', 'Windows_NT', 'Windows_NT_BuildOnly', 'FreeBSD', 'CentOS7.1', 'OpenSUSE13.2', 'RHEL7.2', 'LinuxARMEmulator', 'Ubuntu16.04', 'Fedora23']
-    def static crossList = ['Ubuntu', 'OSX', 'CentOS7.1', 'RHEL7.2', 'Debian8.2', 'OpenSUSE13.2']
+    def static osList = ['Ubuntu', 'Debian8.2', 'OSX', 'Windows_NT', 'Windows_NT_BuildOnly', 'CentOS7.1', 'RHEL7.2', 'LinuxARMEmulator', 'Ubuntu16.04']
+    def static crossList = ['Ubuntu', 'OSX', 'CentOS7.1', 'RHEL7.2', 'Debian8.2']
     // This is a set of JIT stress modes combined with the set of variables that
     // need to be set to actually enable that stress mode.  The key of the map is the stress mode and
     // the values are the environment variables
@@ -260,7 +257,7 @@ def static getJobName(def configuration, def architecture, def os, def scenario,
 
 // **************************
 // Define the basic inner loop builds for PR and commit.  This is basically just the set
-// of coreclr builds over linux/osx/freebsd/windows and debug/release/checked.  In addition, the windows
+// of coreclr builds over linux/osx/windows and debug/release/checked.  In addition, the windows
 // builds will do a couple extra steps.
 // **************************
 
@@ -273,7 +270,7 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
         return
     }
     
-    def bidailyCrossList = ['RHEL7.2', 'Debian8.2', 'OpenSUSE13.2']
+    def bidailyCrossList = ['RHEL7.2', 'Debian8.2']
     // Non pull request builds.
     if (!isPR) {
         // Check scenario.
@@ -482,8 +479,7 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                 break
             }
             switch (os) {
-                // OpenSUSE, Debian & RedHat get trigger phrases for pri 0 build, and pri 1 build & test
-                case 'OpenSUSE13.2':
+                // Debian & RedHat get trigger phrases for pri 0 build, and pri 1 build & test
                 case 'Debian8.2':
                 case 'RHEL7.2':
                     if (scenario == 'default') {
@@ -495,7 +491,6 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                         Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Pri 1 Build & Test", "(?i).*test\\W+${os}\\W+${scenario}.*")
                     }
                     break
-                case 'Fedora23':
                 case 'Ubuntu16.04':
                     assert !isFlowJob
                     assert scenario == 'default'
@@ -982,12 +977,6 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                             break
                     }
                     break
-                case 'FreeBSD':
-                    assert scenario == 'default'
-                    if (configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build")
-                    }
-                    break
                 default:
                     println("Unknown os: ${os}");
                     assert false
@@ -1543,7 +1532,6 @@ combinedScenarios.each { scenario ->
                                         // Run the rest of the build    
                                         // Build the mscorlib for the other OS's
                                         buildCommands += "build.cmd ${lowerConfiguration} ${arch} linuxmscorlib"
-                                        buildCommands += "build.cmd ${lowerConfiguration} ${arch} freebsdmscorlib"
                                         buildCommands += "build.cmd ${lowerConfiguration} ${arch} osxmscorlib"
                                     
                                         // Zip up the tests directory so that we don't use so much space/time copying
@@ -1604,11 +1592,8 @@ combinedScenarios.each { scenario ->
                         case 'Ubuntu16.04':
                         case 'Debian8.2':
                         case 'OSX':
-                        case 'FreeBSD':
                         case 'CentOS7.1':
                         case 'RHEL7.2':
-                        case 'OpenSUSE13.2':
-                        case 'Fedora23':
                             switch (architecture) {
                                 case 'x64':
                                 case 'x86ryujit':
@@ -1621,11 +1606,7 @@ combinedScenarios.each { scenario ->
                                     if (!enableCorefxTesting) {
                                         // We run pal tests on all OS but generate mscorlib (and thus, nuget packages)
                                         // only on supported OS platforms.
-                                        if ((os == 'FreeBSD') || (os == 'OpenSUSE13.2'))
-                                        {
-                                            buildCommands += "./build.sh skipmscorlib verbose ${lowerConfiguration} ${arch}"
-                                        }
-                                        else if (scenario == 'coverage')
+                                        if (scenario == 'coverage')
                                         {
                                             assert os == 'Ubuntu'
                                             assert lowerConfiguration == 'release'
@@ -1778,7 +1759,7 @@ combinedScenarios.each { scenario ->
                             return
                         }
                         //Skip stress modes for these scenarios
-                        if (os == 'RHEL7.2' || os == 'Debian8.2' || os == 'OpenSUSE13.2') {
+                        if (os == 'RHEL7.2' || os == 'Debian8.2') {
                             return
                         }
                     }
@@ -1800,8 +1781,8 @@ combinedScenarios.each { scenario ->
                             return
                         }
                     }
-                    // For RedHat, Debian, and OpenSUSE, we only do Release pri1 builds.
-                    else if (os == 'RHEL7.2' || os == 'Debian8.2' || os == 'OpenSUSE13.2') {
+                    // For RedHat and Debian, we only do Release pri1 builds.
+                    else if (os == 'RHEL7.2' || os == 'Debian8.2') {
                         if (scenario != 'pri1') {
                             return
                         }