diff --git a/release/.buildkite/build_pipeline.py b/release/.buildkite/build_pipeline.py
index 5f9aae193..50bb87437 100644
--- a/release/.buildkite/build_pipeline.py
+++ b/release/.buildkite/build_pipeline.py
@@ -65,7 +65,6 @@ CORE_NIGHTLY_TESTS = {
         SmokeTest("dask_on_ray_large_scale_test_no_spilling"),
         SmokeTest("dask_on_ray_large_scale_test_spilling"),
         "stress_test_placement_group",
-        "grpc_stress_test_placement_group",
         "shuffle_1tb_1000_partition",
         "non_streaming_shuffle_1tb_1000_partition",
         "shuffle_1tb_5000_partitions",
@@ -74,14 +73,12 @@ CORE_NIGHTLY_TESTS = {
         # "non_streaming_shuffle_1tb_5000_partitions",
         "decision_tree_autoscaling",
         "decision_tree_autoscaling_20_runs",
-        "grpc_decision_tree_autoscaling_20_runs",
         "autoscaling_shuffle_1tb_1000_partitions",
         SmokeTest("stress_test_many_tasks"),
         SmokeTest("stress_test_dead_actors"),
         "shuffle_data_loader",
         "dask_on_ray_1tb_sort",
         "many_nodes_actor_test",
-        "grpc_many_nodes_actor_test",
     ],
     "~/ray/benchmarks/benchmark_tests.yaml": [
         "single_node",
@@ -111,7 +108,6 @@ NIGHTLY_TESTS = {
         "dask_on_ray_large_scale_test_no_spilling",
         "dask_on_ray_large_scale_test_spilling",
         "pg_autoscaling_regression_test",
-        "grpc_pg_autoscaling_regression_test",
     ],
     "~/ray/release/long_running_tests/long_running_tests.yaml": [
         SmokeTest("actor_deaths"),
diff --git a/release/nightly_tests/decision_tree/decision_tree_app_config_grpc.yaml b/release/nightly_tests/decision_tree/decision_tree_app_config_grpc.yaml
deleted file mode 100644
index 92ecc76eb..000000000
--- a/release/nightly_tests/decision_tree/decision_tree_app_config_grpc.yaml
+++ /dev/null
@@ -1,14 +0,0 @@
-base_image: "anyscale/ray-ml:pinned-nightly-py37"
-env_vars: {"RAY_grpc_based_resource_broadcast": "true"}
-
-python:
-  pip_packages: []
-  conda_packages: []
-
-post_build_cmds:
-  - pip uninstall -y ray
-  - pip3 install -U {{ env["RAY_WHEELS"] | default("ray") }}
-  - pip3 install -U ray[default]
-  - pip3 install sklearn
-  - echo {{env["DATESTAMP"]}}
-  - {{ env["RAY_WHEELS_SANITY_CHECK"] | default("echo No Ray wheels sanity check") }}
diff --git a/release/nightly_tests/many_nodes_tests/app_config_grpc.yaml b/release/nightly_tests/many_nodes_tests/app_config_grpc.yaml
deleted file mode 100644
index e0881b604..000000000
--- a/release/nightly_tests/many_nodes_tests/app_config_grpc.yaml
+++ /dev/null
@@ -1,14 +0,0 @@
-base_image: "anyscale/ray-ml:pinned-nightly-py37"
-env_vars: {"RAY_gcs_server_rpc_server_thread_num": "8", "RAY_GCS_ACTOR_SCHEDULING_ENABLED": "true", "RAY_grpc_based_resource_broadcast": "true"}
-debian_packages: []
-
-python:
-  pip_packages: []
-  conda_packages: []
-
-post_build_cmds:
-  - pip uninstall -y ray
-  - pip3 install -U {{ env["RAY_WHEELS"] | default("ray") }}
-  - pip3 install -U ray[default]
-  - echo {{env["DATESTAMP"]}}
-  - {{ env["RAY_WHEELS_SANITY_CHECK"] | default("echo No Ray wheels sanity check") }}
diff --git a/release/nightly_tests/nightly_tests.yaml b/release/nightly_tests/nightly_tests.yaml
index 57decc299..242c34a1f 100644
--- a/release/nightly_tests/nightly_tests.yaml
+++ b/release/nightly_tests/nightly_tests.yaml
@@ -242,17 +242,6 @@
     timeout: 7200
     script: python stress_tests/test_placement_group.py
 
-
-- name: grpc_stress_test_placement_group
-  cluster:
-    app_config: stress_tests/stress_tests_app_config_grpc.yaml
-    compute_template: stress_tests/placement_group_tests_compute.yaml
-
-  run:
-    timeout: 7200
-    script: python stress_tests/test_placement_group.py
-  stable: false
-
 # Test decision tree on autoscaling compute cluster.
 - name: decision_tree_autoscaling
   cluster:
@@ -272,17 +261,6 @@
     timeout: 9600
     script: python decision_tree/cart_with_tree.py --concurrency=20
 
-# Test 20 concurrent decision tree runs on autoscaling compute cluster
-# grpc broadcasting version.
-- name: grpc_decision_tree_autoscaling_20_runs
-  cluster:
-    app_config: decision_tree/decision_tree_app_config_grpc.yaml
-    compute_template: decision_tree/autoscaling_compute.yaml
-  run:
-    timeout: 9600
-    script: python decision_tree/cart_with_tree.py --concurrency=20
-  stable: false
-
 # Stress test shuffle_data_loader.
 - name: shuffle_data_loader
   cluster:
@@ -348,17 +326,6 @@
     prepare: python wait_cluster.py 251 5400
     script: python many_nodes_tests/actor_test.py
 
-- name: grpc_many_nodes_actor_test
-  cluster:
-    app_config: many_nodes_tests/app_config_grpc.yaml
-    compute_template: many_nodes_tests/compute_config.yaml
-
-  run:
-    timeout: 7200
-    prepare: python wait_cluster.py 251 5400
-    script: python many_nodes_tests/actor_test.py
-  stable: false
-
 - name: pg_autoscaling_regression_test
   cluster:
     app_config: placement_group_tests/app_config.yaml
@@ -367,13 +334,3 @@
   run:
     timeout: 1200
     script: python placement_group_tests/pg_run.py
-
-- name: grpc_pg_autoscaling_regression_test
-  cluster:
-    app_config: placement_group_tests/app_config_grpc.yaml
-    compute_template: placement_group_tests/compute.yaml
-
-  run:
-    timeout: 1200
-    script: python placement_group_tests/pg_run.py
-  stable: false
diff --git a/release/nightly_tests/placement_group_tests/app_config_grpc.yaml b/release/nightly_tests/placement_group_tests/app_config_grpc.yaml
deleted file mode 100644
index d6177e196..000000000
--- a/release/nightly_tests/placement_group_tests/app_config_grpc.yaml
+++ /dev/null
@@ -1,13 +0,0 @@
-base_image: "anyscale/ray-ml:pinned-nightly-py37"
-env_vars: {"RAY_grpc_based_resource_broadcast": "true", "RAY_event_log_reporter_enabled": "true"}
-debian_packages: []
-
-python:
-  pip_packages: []
-  conda_packages: []
-
-post_build_cmds:
-  - pip uninstall -y ray
-  - pip3 install -U {{ env["RAY_WHEELS"] | default("ray") }}
-  - pip3 install -U ray[default]
-  - {{ env["RAY_WHEELS_SANITY_CHECK"] | default("echo No Ray wheels sanity check") }}
diff --git a/release/nightly_tests/stress_tests/stress_tests_app_config_grpc.yaml b/release/nightly_tests/stress_tests/stress_tests_app_config_grpc.yaml
deleted file mode 100644
index 78fffaede..000000000
--- a/release/nightly_tests/stress_tests/stress_tests_app_config_grpc.yaml
+++ /dev/null
@@ -1,16 +0,0 @@
-base_image: "anyscale/ray-ml:pinned-nightly-py37"
-env_vars: {"RAY_grpc_based_resource_broadcast": "true"}
-debian_packages: []
-
-python:
-  pip_packages: []
-  conda_packages: []
-
-post_build_cmds:
-  - pip uninstall -y ray
-  - pip3 install -U {{ env["RAY_WHEELS"] | default("ray") }}
-  - pip3 install -U ray[default]
-  - pip install terminado
-  - pip install boto3 cython==0.29.0
-  - echo {{env["DATESTAMP"]}}
-  - {{ env["RAY_WHEELS_SANITY_CHECK"] | default("echo No Ray wheels sanity check") }}