diff --git a/src/csharp/.gitignore b/src/csharp/.gitignore
index deac55029eeddea0cda72a0446f949a0a48552d9..0f96a4822194b96c319fe9e62982b22b0e2272f4 100644
--- a/src/csharp/.gitignore
+++ b/src/csharp/.gitignore
@@ -7,6 +7,7 @@ Grpc.v12.suo
 Grpc.sdf
 
 TestResult.xml
+coverage_results.xml
 /TestResults
 .vs/
 *.nupkg
diff --git a/src/csharp/.nuget/packages.config b/src/csharp/.nuget/packages.config
index a7df95cf6bd8d02347fc9409c9f57f68a8b4450d..89a310ac5697ed25fe4542a4f74e3fa1cc67dfeb 100644
--- a/src/csharp/.nuget/packages.config
+++ b/src/csharp/.nuget/packages.config
@@ -1,4 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="NUnit.Runners" version="2.6.4" />
+  <package id="OpenCover" version="4.6.166" />
+  <package id="ReportGenerator" version="2.3.2.0" />
 </packages>
\ No newline at end of file
diff --git a/tools/run_tests/run_csharp.bat b/tools/run_tests/run_csharp.bat
index 310cfe0d2febe85b99b9694b0e01751d83b4c7d8..0e33e5295a4f8f1c946156a935b9320887bc121c 100644
--- a/tools/run_tests/run_csharp.bat
+++ b/tools/run_tests/run_csharp.bat
@@ -2,13 +2,23 @@
 
 setlocal
 
-@rem enter this directory
+@rem enter src/csharp directory
 cd /d %~dp0\..\..\src\csharp
 
-@rem set UUID variable to a random GUID, we will use it to put TestResults.xml to a dedicated directory, so that parallel test runs don't collide
-for /F %%i in ('powershell -Command "[guid]::NewGuid().ToString()"') do (set UUID=%%i)
+if not "%CONFIG%" == "gcov" (
+  @rem Run tests for assembly passed as 1st arg.
 
-packages\NUnit.Runners.2.6.4\tools\nunit-console-x86.exe /domain:None -labels "%1/bin/Debug/%1.dll" -work test-results/%UUID% || goto :error
+  @rem set UUID variable to a random GUID, we will use it to put TestResults.xml to a dedicated directory, so that parallel test runs don't collide
+  for /F %%i in ('powershell -Command "[guid]::NewGuid().ToString()"') do (set UUID=%%i)
+
+  packages\NUnit.Runners.2.6.4\tools\nunit-console-x86.exe /domain:None -labels "%1/bin/Debug/%1.dll" -work test-results/%UUID% || goto :error
+) else (
+  @rem Run all tests with code coverage
+
+  packages\OpenCover.4.6.166\tools\OpenCover.Console.exe -target:"packages\NUnit.Runners.2.6.4\tools\nunit-console-x86.exe" -targetdir:"." -targetargs:"/domain:None -labels Grpc.Core.Tests/bin/Debug/Grpc.Core.Tests.dll Grpc.IntegrationTesting/bin/Debug/Grpc.IntegrationTesting.dll Grpc.Examples.Tests/bin/Debug/Grpc.Examples.Tests.dll Grpc.HealthCheck.Tests/bin/Debug/Grpc.HealthCheck.Tests.dll" -filter:"+[Grpc.Core]*"  -register:user -output:coverage_results.xml || goto :error
+
+  packages\ReportGenerator.2.3.2.0\tools\ReportGenerator.exe -reports:"coverage_results.xml" -targetdir:"..\..\reports\csharp_coverage" -reporttypes:"Html;TextSummary" || goto :error
+)
 
 endlocal
 
diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index 3859958a9521af0a2364d57abcd5681802be5518..b1f886f319c6d82b6362453acb96fe126b76b14b 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -342,10 +342,16 @@ class CSharpLanguage(object):
       cmd = 'tools\\run_tests\\run_csharp.bat'
     else:
       cmd = 'tools/run_tests/run_csharp.sh'
-    return [config.job_spec([cmd, assembly],
-            None, shortname=assembly,
-            environ=_FORCE_ENVIRON_FOR_WRAPPERS)
-            for assembly in assemblies]
+
+    if not config.build_config == 'gcov':
+      return [config.job_spec([cmd, assembly],
+              None, shortname=assembly,
+              environ=_FORCE_ENVIRON_FOR_WRAPPERS)
+              for assembly in assemblies]
+    else:
+      # For code coverage we need to run all tests in one suite.
+      return [config.job_spec([cmd], None,
+              environ=_FORCE_ENVIRON_FOR_WRAPPERS)]
 
   def pre_build_steps(self):
     if self.platform == 'windows':