diff --git a/test/core/end2end/tests/max_concurrent_streams.cc b/test/core/end2end/tests/max_concurrent_streams.cc
index 86a8d224435..b3cc7af02ba 100644
--- a/test/core/end2end/tests/max_concurrent_streams.cc
+++ b/test/core/end2end/tests/max_concurrent_streams.cc
@@ -83,7 +83,7 @@ static void end_test(grpc_end2end_test_fixture* f) {
   grpc_completion_queue_destroy(f->shutdown_cq);
 }
 
-static void simple_request_body(grpc_end2end_test_config config,
+static void simple_request_body(grpc_end2end_test_config /*config*/,
                                 grpc_end2end_test_fixture f) {
   grpc_call* c;
   grpc_call* s;
diff --git a/test/core/end2end/tests/max_connection_idle.cc b/test/core/end2end/tests/max_connection_idle.cc
index faa1383207d..87cbeff049d 100644
--- a/test/core/end2end/tests/max_connection_idle.cc
+++ b/test/core/end2end/tests/max_connection_idle.cc
@@ -42,7 +42,7 @@ static void drain_cq(grpc_completion_queue* cq) {
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
-static void simple_request_body(grpc_end2end_test_config config,
+static void simple_request_body(grpc_end2end_test_config /*config*/,
                                 grpc_end2end_test_fixture* f) {
   grpc_call* c;
   grpc_call* s;
diff --git a/test/core/end2end/tests/negative_deadline.cc b/test/core/end2end/tests/negative_deadline.cc
index 2b2ff126c4a..464267c92f1 100644
--- a/test/core/end2end/tests/negative_deadline.cc
+++ b/test/core/end2end/tests/negative_deadline.cc
@@ -86,7 +86,7 @@ static void end_test(grpc_end2end_test_fixture* f) {
   grpc_completion_queue_destroy(f->shutdown_cq);
 }
 
-static void simple_request_body(grpc_end2end_test_config config,
+static void simple_request_body(grpc_end2end_test_config /*config*/,
                                 grpc_end2end_test_fixture f, size_t num_ops) {
   grpc_call* c;
   cq_verifier* cqv = cq_verifier_create(f.cq);
diff --git a/test/core/end2end/tests/payload.cc b/test/core/end2end/tests/payload.cc
index cb6eb47de93..6e2bc1690b6 100644
--- a/test/core/end2end/tests/payload.cc
+++ b/test/core/end2end/tests/payload.cc
@@ -100,7 +100,7 @@ static grpc_slice generate_random_slice() {
   return out;
 }
 
-static void request_response_with_payload(grpc_end2end_test_config config,
+static void request_response_with_payload(grpc_end2end_test_config /*config*/,
                                           grpc_end2end_test_fixture f) {
   /* Create large request and response bodies. These are big enough to require
    * multiple round trips to deliver to the peer, and their exact contents of
diff --git a/test/core/end2end/tests/proxy_auth.cc b/test/core/end2end/tests/proxy_auth.cc
index 3b12869d2f0..3e9d7a3388d 100644
--- a/test/core/end2end/tests/proxy_auth.cc
+++ b/test/core/end2end/tests/proxy_auth.cc
@@ -90,7 +90,7 @@ static void end_test(grpc_end2end_test_fixture* f) {
   grpc_completion_queue_destroy(f->shutdown_cq);
 }
 
-static void simple_request_body(grpc_end2end_test_config config,
+static void simple_request_body(grpc_end2end_test_config /*config*/,
                                 grpc_end2end_test_fixture f) {
   grpc_call* c;
   grpc_call* s;
diff --git a/test/core/end2end/tests/registered_call.cc b/test/core/end2end/tests/registered_call.cc
index 3e05fd1421f..badd802335b 100644
--- a/test/core/end2end/tests/registered_call.cc
+++ b/test/core/end2end/tests/registered_call.cc
@@ -86,7 +86,7 @@ static void end_test(grpc_end2end_test_fixture* f) {
   grpc_completion_queue_destroy(f->shutdown_cq);
 }
 
-static void simple_request_body(grpc_end2end_test_config config,
+static void simple_request_body(grpc_end2end_test_config /*config*/,
                                 grpc_end2end_test_fixture f, void* rc) {
   grpc_call* c;
   grpc_call* s;
diff --git a/test/core/end2end/tests/server_finishes_request.cc b/test/core/end2end/tests/server_finishes_request.cc
index c81b309a1e6..9ee23c91ea0 100644
--- a/test/core/end2end/tests/server_finishes_request.cc
+++ b/test/core/end2end/tests/server_finishes_request.cc
@@ -85,7 +85,7 @@ static void end_test(grpc_end2end_test_fixture* f) {
   grpc_completion_queue_destroy(f->shutdown_cq);
 }
 
-static void simple_request_body(grpc_end2end_test_config config,
+static void simple_request_body(grpc_end2end_test_config /*config*/,
                                 grpc_end2end_test_fixture f) {
   grpc_call* c;
   grpc_call* s;
diff --git a/test/core/end2end/tests/simple_delayed_request.cc b/test/core/end2end/tests/simple_delayed_request.cc
index 8d116999459..dc4fdbd6e81 100644
--- a/test/core/end2end/tests/simple_delayed_request.cc
+++ b/test/core/end2end/tests/simple_delayed_request.cc
@@ -75,7 +75,7 @@ static void simple_delayed_request_body(grpc_end2end_test_config config,
                                         grpc_end2end_test_fixture* f,
                                         grpc_channel_args* client_args,
                                         grpc_channel_args* server_args,
-                                        long delay_us) {
+                                        long /*delay_us*/) {
   grpc_call* c;
   grpc_call* s;
   cq_verifier* cqv = cq_verifier_create(f->cq);
diff --git a/test/core/gpr/alloc_test.cc b/test/core/gpr/alloc_test.cc
index 0b110e2b77d..55fe6d95a8f 100644
--- a/test/core/gpr/alloc_test.cc
+++ b/test/core/gpr/alloc_test.cc
@@ -25,7 +25,7 @@
 
 static void* fake_malloc(size_t size) { return (void*)size; }
 
-static void* fake_realloc(void* addr, size_t size) { return (void*)size; }
+static void* fake_realloc(void* /*addr*/, size_t size) { return (void*)size; }
 
 static void fake_free(void* addr) {
   *(static_cast<intptr_t*>(addr)) = static_cast<intptr_t>(0xdeadd00d);
diff --git a/test/core/iomgr/buffer_list_test.cc b/test/core/iomgr/buffer_list_test.cc
index 7602067528d..2c179c4a047 100644
--- a/test/core/iomgr/buffer_list_test.cc
+++ b/test/core/iomgr/buffer_list_test.cc
@@ -131,6 +131,6 @@ int main(int argc, char** argv) {
 
 #else /* GRPC_LINUX_ERRQUEUE */
 
-int main(int argc, char** argv) { return 0; }
+int main(int /*argc*/, char** /*argv*/) { return 0; }
 
 #endif /* GRPC_LINUX_ERRQUEUE */