diff --git a/test/cpp/end2end/message_allocator_end2end_test.cc b/test/cpp/end2end/message_allocator_end2end_test.cc
index e46453c0282..c7e197f2043 100644
--- a/test/cpp/end2end/message_allocator_end2end_test.cc
+++ b/test/cpp/end2end/message_allocator_end2end_test.cc
@@ -70,7 +70,7 @@ class CallbackTestServiceImpl
     allocator_mutator_ = mutator;
   }
 
-  void Echo(ServerContext* context, const EchoRequest* request,
+  void Echo(ServerContext* /*context*/, const EchoRequest* request,
             EchoResponse* response,
             experimental::ServerCallbackRpcController* controller) override {
     response->set_message(request->message());
diff --git a/test/cpp/end2end/mock_test.cc b/test/cpp/end2end/mock_test.cc
index 0196c9de7e0..d708c05235c 100644
--- a/test/cpp/end2end/mock_test.cc
+++ b/test/cpp/end2end/mock_test.cc
@@ -163,13 +163,13 @@ class FakeClient {
 
 class TestServiceImpl : public EchoTestService::Service {
  public:
-  Status Echo(ServerContext* context, const EchoRequest* request,
+  Status Echo(ServerContext* /*context*/, const EchoRequest* request,
               EchoResponse* response) override {
     response->set_message(request->message());
     return Status::OK;
   }
 
-  Status RequestStream(ServerContext* context,
+  Status RequestStream(ServerContext* /*context*/,
                        ServerReader<EchoRequest>* reader,
                        EchoResponse* response) override {
     EchoRequest request;
@@ -182,7 +182,8 @@ class TestServiceImpl : public EchoTestService::Service {
     return Status::OK;
   }
 
-  Status ResponseStream(ServerContext* context, const EchoRequest* request,
+  Status ResponseStream(ServerContext* /*context*/,
+                        const EchoRequest* request,
                         ServerWriter<EchoResponse>* writer) override {
     EchoResponse response;
     vector<grpc::string> tokens = split(request->message());
@@ -194,7 +195,7 @@ class TestServiceImpl : public EchoTestService::Service {
   }
 
   Status BidiStream(
-      ServerContext* context,
+      ServerContext* /*context*/,
       ServerReaderWriter<EchoResponse, EchoRequest>* stream) override {
     EchoRequest request;
     EchoResponse response;
diff --git a/test/cpp/end2end/port_sharing_end2end_test.cc b/test/cpp/end2end/port_sharing_end2end_test.cc
index 1d6944f1f64..8398517eee3 100644
--- a/test/cpp/end2end/port_sharing_end2end_test.cc
+++ b/test/cpp/end2end/port_sharing_end2end_test.cc
@@ -154,7 +154,7 @@ class TestTcpServer {
   }
 
  private:
-  void OnConnect(grpc_endpoint* tcp, grpc_pollset* accepting_pollset,
+  void OnConnect(grpc_endpoint* tcp, grpc_pollset* /*accepting_pollset*/,
                  grpc_tcp_server_acceptor* acceptor) {
     char* peer = grpc_endpoint_get_peer(tcp);
     gpr_log(GPR_INFO, "Got incoming connection! from %s", peer);
diff --git a/test/cpp/end2end/server_builder_plugin_test.cc b/test/cpp/end2end/server_builder_plugin_test.cc
index 1ba7a9b5c58..c7343b30abd 100644
--- a/test/cpp/end2end/server_builder_plugin_test.cc
+++ b/test/cpp/end2end/server_builder_plugin_test.cc
@@ -61,9 +61,12 @@ class TestServerBuilderPlugin : public ServerBuilderPlugin {
     }
   }
 
-  void Finish(ServerInitializer* si) override { finish_is_called_ = true; }
+  void Finish(ServerInitializer* /*si*/) override {
+    finish_is_called_ = true;
+  }
 
-  void ChangeArguments(const grpc::string& name, void* value) override {
+  void ChangeArguments(const grpc::string& /*name*/,
+                       void* /*value*/) override {
     change_arguments_is_called_ = true;
   }
 
@@ -99,7 +102,7 @@ class InsertPluginServerBuilderOption : public ServerBuilderOption {
  public:
   InsertPluginServerBuilderOption() { register_service_ = false; }
 
-  void UpdateArguments(ChannelArguments* arg) override {}
+  void UpdateArguments(ChannelArguments* /*arg*/) override {}
 
   void UpdatePlugins(
       std::vector<std::unique_ptr<ServerBuilderPlugin>>* plugins) override {
diff --git a/test/cpp/end2end/server_crash_test.cc b/test/cpp/end2end/server_crash_test.cc
index 353ebf713a0..22a0d4485b7 100644
--- a/test/cpp/end2end/server_crash_test.cc
+++ b/test/cpp/end2end/server_crash_test.cc
@@ -50,7 +50,7 @@ class ServiceImpl final : public ::grpc::testing::EchoTestService::Service {
   ServiceImpl() : bidi_stream_count_(0), response_stream_count_(0) {}
 
   Status BidiStream(
-      ServerContext* context,
+      ServerContext* /*context*/,
       ServerReaderWriter<EchoResponse, EchoRequest>* stream) override {
     bidi_stream_count_++;
     EchoRequest request;
@@ -65,7 +65,8 @@ class ServiceImpl final : public ::grpc::testing::EchoTestService::Service {
     return Status::OK;
   }
 
-  Status ResponseStream(ServerContext* context, const EchoRequest* request,
+  Status ResponseStream(ServerContext* /*context*/,
+                        const EchoRequest* /*request*/,
                         ServerWriter<EchoResponse>* writer) override {
     EchoResponse response;
     response_stream_count_++;
diff --git a/test/cpp/end2end/server_interceptors_end2end_test.cc b/test/cpp/end2end/server_interceptors_end2end_test.cc
index 34409fe375c..70697275c3a 100644
--- a/test/cpp/end2end/server_interceptors_end2end_test.cc
+++ b/test/cpp/end2end/server_interceptors_end2end_test.cc
@@ -147,7 +147,7 @@ class LoggingInterceptorFactory
 // Test if SendMessage function family works as expected for sync/callback apis
 class SyncSendMessageTester : public experimental::Interceptor {
  public:
-  SyncSendMessageTester(experimental::ServerRpcInfo* info) {}
+  SyncSendMessageTester(experimental::ServerRpcInfo* /*info*/) {}
 
   void Intercept(experimental::InterceptorBatchMethods* methods) override {
     if (methods->QueryInterceptionHookPoint(
@@ -177,7 +177,7 @@ class SyncSendMessageTesterFactory
 // Test if SendMessage function family works as expected for sync/callback apis
 class SyncSendMessageVerifier : public experimental::Interceptor {
  public:
-  SyncSendMessageVerifier(experimental::ServerRpcInfo* info) {}
+  SyncSendMessageVerifier(experimental::ServerRpcInfo* /*info*/) {}
 
   void Intercept(experimental::InterceptorBatchMethods* methods) override {
     if (methods->QueryInterceptionHookPoint(
diff --git a/test/cpp/end2end/shutdown_test.cc b/test/cpp/end2end/shutdown_test.cc
index 0105dee24b3..ec8597f3e72 100644
--- a/test/cpp/end2end/shutdown_test.cc
+++ b/test/cpp/end2end/shutdown_test.cc
@@ -46,8 +46,8 @@ class TestServiceImpl : public ::grpc::testing::EchoTestService::Service {
  public:
   explicit TestServiceImpl(gpr_event* ev) : ev_(ev) {}
 
-  Status Echo(ServerContext* context, const EchoRequest* request,
-              EchoResponse* response) override {
+  Status Echo(ServerContext* context, const EchoRequest* /*request*/,
+              EchoResponse* /*response*/) override {
     gpr_event_set(ev_, (void*)1);
     while (!context->IsCancelled()) {
     }
diff --git a/test/cpp/end2end/streaming_throughput_test.cc b/test/cpp/end2end/streaming_throughput_test.cc
index 0c10957eb77..f2252063fb1 100644
--- a/test/cpp/end2end/streaming_throughput_test.cc
+++ b/test/cpp/end2end/streaming_throughput_test.cc
@@ -106,7 +106,7 @@ class TestServiceImpl : public ::grpc::testing::EchoTestService::Service {
 
   // Only implement the one method we will be calling for brevity.
   Status BidiStream(
-      ServerContext* context,
+      ServerContext* /*context*/,
       ServerReaderWriter<EchoResponse, EchoRequest>* stream) override {
     EchoRequest request;
     gpr_atm should_exit;
diff --git a/test/cpp/end2end/thread_stress_test.cc b/test/cpp/end2end/thread_stress_test.cc
index fee20c82679..cd2254e79ea 100644
--- a/test/cpp/end2end/thread_stress_test.cc
+++ b/test/cpp/end2end/thread_stress_test.cc
@@ -57,7 +57,7 @@ class TestServiceImpl : public ::grpc::testing::EchoTestService::Service {
  public:
   TestServiceImpl() {}
 
-  Status Echo(ServerContext* context, const EchoRequest* request,
+  Status Echo(ServerContext* /*context*/, const EchoRequest* request,
               EchoResponse* response) override {
     response->set_message(request->message());
     return Status::OK;
diff --git a/test/cpp/end2end/xds_end2end_test.cc b/test/cpp/end2end/xds_end2end_test.cc
index 69b92504bb8..14be8c3ad83 100644
--- a/test/cpp/end2end/xds_end2end_test.cc
+++ b/test/cpp/end2end/xds_end2end_test.cc
@@ -423,7 +423,8 @@ class LrsServiceImpl : public LrsService {
       : client_load_reporting_interval_seconds_(
             client_load_reporting_interval_seconds) {}
 
-  Status StreamLoadStats(ServerContext* context, Stream* stream) override {
+  Status StreamLoadStats(ServerContext* /*context*/,
+                         Stream* stream) override {
     gpr_log(GPR_INFO, "LB[%p]: LRS StreamLoadStats starts", this);
     // Read request.
     LoadStatsRequest request;