diff --git a/utils/bazel/WORKSPACE b/utils/bazel/WORKSPACE
--- a/utils/bazel/WORKSPACE
+++ b/utils/bazel/WORKSPACE
@@ -71,3 +71,13 @@
     name = "vulkan_sdk",
 )
 
+maybe(
+    http_archive,
+    name = "llvm_zstd",
+    build_file = "@llvm-raw//utils/bazel/third_party_build:zstd.BUILD",
+    sha256 = "7c42d56fac126929a6a85dbc73ff1db2411d04f104fae9bdea51305663a83fd0",
+    strip_prefix = "zstd-1.5.2",
+    urls = [
+        "https://github.com/facebook/zstd/releases/download/v1.5.2/zstd-1.5.2.tar.gz"
+    ],
+)
diff --git a/utils/bazel/llvm-project-overlay/lld/BUILD.bazel b/utils/bazel/llvm-project-overlay/lld/BUILD.bazel
--- a/utils/bazel/llvm-project-overlay/lld/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/lld/BUILD.bazel
@@ -96,6 +96,7 @@
         "//llvm:Passes",
         "//llvm:Support",
         "//llvm:TransformUtils",
+        "@llvm_zstd//:zstd",
     ],
 )
 
diff --git a/utils/bazel/llvm-project-overlay/llvm/BUILD.bazel b/utils/bazel/llvm-project-overlay/llvm/BUILD.bazel
--- a/utils/bazel/llvm-project-overlay/llvm/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/llvm/BUILD.bazel
@@ -278,6 +278,10 @@
         # be an empty library unless zlib is enabled, in which case it will
         # both provide the necessary dependencies and configuration defines.
         "@llvm_zlib//:zlib",
+        # We unconditionally depend on the custom LLVM zstd wrapper. This will
+        # be an empty library unless zlib is enabled, in which case it will
+        # both provide the necessary dependencies and configuration defines.
+        "@llvm_zstd//:zstd",
     ],
 )
 
diff --git a/utils/bazel/third_party_build/zstd.BUILD b/utils/bazel/third_party_build/zstd.BUILD
new file mode 100644
--- /dev/null
+++ b/utils/bazel/third_party_build/zstd.BUILD
@@ -0,0 +1,59 @@
+# This file is licensed under the Apache License v2.0 with LLVM Exceptions.
+# See https://llvm.org/LICENSE.txt for license information.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+load("@bazel_skylib//rules:common_settings.bzl", "bool_flag")
+
+package(
+    default_visibility = ["//visibility:public"],
+    # BSD/MIT-like license (for zstd)
+    licenses = ["notice"],
+)
+
+bool_flag(
+    name = "llvm_enable_zstd",
+    build_setting_default = True,
+)
+
+config_setting(
+    name = "llvm_zstd_enabled",
+    flag_values = {":llvm_enable_zstd": "true"},
+)
+
+config_setting(
+    name = "llvm_zstd_disabled",
+    flag_values = {":llvm_enable_zstd": "false"},
+)
+
+cc_library(
+    name = "zstd",
+    srcs = select({
+        ":llvm_zstd_disabled": [],
+        "//conditions:default": glob([
+            "lib/common/*.c",
+            "lib/common/*.h",
+            "lib/compress/*.c",
+            "lib/compress/*.h",
+            "lib/decompress/*.c",
+            "lib/decompress/*.h",
+            "lib/decompress/*.S",
+            "lib/dictBuilder/*.c",
+            "lib/dictBuilder/*.h",
+        ]),
+    }),
+    hdrs = select({
+        ":llvm_zstd_disabled": [],
+        "//conditions:default": [
+            "lib/zstd.h",
+            "lib/zdict.h",
+            "lib/zstd_errors.h",
+        ],
+    }),
+    defines = select({
+        ":llvm_zstd_disabled": [],
+        "//conditions:default": [
+            "LLVM_ENABLE_ZSTD=1",
+            "ZSTD_MULTITHREAD",
+        ],
+    }),
+    includes = ["lib"],
+)