diff --git a/clang-tools-extra/clangd/CMakeLists.txt b/clang-tools-extra/clangd/CMakeLists.txt
index bda9d8c1585eb4..7cfbd6f95750e2 100644
--- a/clang-tools-extra/clangd/CMakeLists.txt
+++ b/clang-tools-extra/clangd/CMakeLists.txt
@@ -29,7 +29,6 @@ llvm_canonicalize_cmake_booleans(
   CLANGD_MALLOC_TRIM
   CLANGD_TIDY_CHECKS
   LLVM_ENABLE_ZLIB
-  LLVM_ENABLE_ZSTD
 )
 
 configure_file(
diff --git a/clang-tools-extra/clangd/test/lit.cfg.py b/clang-tools-extra/clangd/test/lit.cfg.py
index 8a31cd54de8ee3..0f3d8b310b290f 100644
--- a/clang-tools-extra/clangd/test/lit.cfg.py
+++ b/clang-tools-extra/clangd/test/lit.cfg.py
@@ -36,6 +36,3 @@ def calculate_arch_features(arch_string):
 
 if config.have_zlib:
   config.available_features.add('zlib')
-
-if config.have_zstd:
-  config.available_features.add('zstd')
diff --git a/clang-tools-extra/clangd/test/lit.site.cfg.py.in b/clang-tools-extra/clangd/test/lit.site.cfg.py.in
index 83bfe322a9adc3..20caa72af3da1f 100644
--- a/clang-tools-extra/clangd/test/lit.site.cfg.py.in
+++ b/clang-tools-extra/clangd/test/lit.site.cfg.py.in
@@ -17,7 +17,6 @@ config.clangd_build_xpc = @CLANGD_BUILD_XPC@
 config.clangd_enable_remote = @CLANGD_ENABLE_REMOTE@
 config.clangd_tidy_checks = @CLANGD_TIDY_CHECKS@
 config.have_zlib = @LLVM_ENABLE_ZLIB@
-config.have_zstd = @LLVM_ENABLE_ZSTD@
 
 # Delegate logic to lit.cfg.py.
 lit_config.load_config(config, "@CMAKE_CURRENT_SOURCE_DIR@/lit.cfg.py")
diff --git a/clang/test/CMakeLists.txt b/clang/test/CMakeLists.txt
index 5af7c308359961..5b604b2a3eeba3 100644
--- a/clang/test/CMakeLists.txt
+++ b/clang/test/CMakeLists.txt
@@ -11,7 +11,6 @@ llvm_canonicalize_cmake_booleans(
   CLANG_SPAWN_CC1
   ENABLE_BACKTRACES
   LLVM_ENABLE_ZLIB
-  LLVM_ENABLE_ZSTD
   LLVM_ENABLE_PER_TARGET_RUNTIME_DIR
   LLVM_ENABLE_THREADS
   LLVM_WITH_Z3
diff --git a/clang/test/lit.site.cfg.py.in b/clang/test/lit.site.cfg.py.in
index eb1013059e0eaa..8a9849fe4549d5 100644
--- a/clang/test/lit.site.cfg.py.in
+++ b/clang/test/lit.site.cfg.py.in
@@ -21,7 +21,6 @@ config.host_cc = "@CMAKE_C_COMPILER@"
 config.host_cxx = "@CMAKE_CXX_COMPILER@"
 config.llvm_use_sanitizer = "@LLVM_USE_SANITIZER@"
 config.have_zlib = @LLVM_ENABLE_ZLIB@
-config.have_zstd = @LLVM_ENABLE_ZSTD@
 config.clang_arcmt = @CLANG_ENABLE_ARCMT@
 config.clang_default_pie_on_linux = @CLANG_DEFAULT_PIE_ON_LINUX@
 config.clang_enable_opaque_pointers = @CLANG_ENABLE_OPAQUE_POINTERS_INTERNAL@
diff --git a/compiler-rt/lib/sanitizer_common/symbolizer/scripts/build_symbolizer.sh b/compiler-rt/lib/sanitizer_common/symbolizer/scripts/build_symbolizer.sh
index f4f242feae013a..b6f731566c19b5 100755
--- a/compiler-rt/lib/sanitizer_common/symbolizer/scripts/build_symbolizer.sh
+++ b/compiler-rt/lib/sanitizer_common/symbolizer/scripts/build_symbolizer.sh
@@ -140,7 +140,6 @@ if [[ ! -d ${LLVM_BUILD} ]]; then
     -DLLVM_TABLEGEN=$TBLGEN \
     -DLLVM_DEFAULT_TARGET_TRIPLE="${TARGET_TRIPLE}" \
     -DLLVM_ENABLE_ZLIB=ON \
-    -DLLVM_ENABLE_ZSTD=ON \
     -DLLVM_ENABLE_TERMINFO=OFF \
     -DLLVM_ENABLE_THREADS=OFF \
   $LLVM_SRC
diff --git a/compiler-rt/test/lit.common.cfg.py b/compiler-rt/test/lit.common.cfg.py
index a38c1308ecf43e..62a73dd3139686 100644
--- a/compiler-rt/test/lit.common.cfg.py
+++ b/compiler-rt/test/lit.common.cfg.py
@@ -217,9 +217,6 @@ def get_path_from_clang(args, allow_failure):
 
 if config.have_zlib == "1":
   config.available_features.add("zlib")
-  
-if config.have_zstd == "1":
-  config.available_features.add("zstd")
 
 # Use ugly construction to explicitly prohibit "clang", "clang++" etc.
 # in RUN lines.
diff --git a/compiler-rt/test/lit.common.configured.in b/compiler-rt/test/lit.common.configured.in
index 43f4b8895d34b9..5db6ef0121fbe6 100644
--- a/compiler-rt/test/lit.common.configured.in
+++ b/compiler-rt/test/lit.common.configured.in
@@ -65,7 +65,6 @@ else:
   set_default("target_suffix", "-%s" % config.target_arch)
 
 set_default("have_zlib", "@LLVM_ENABLE_ZLIB@")
-set_default("have_zstd", "@LLVM_ENABLE_ZSTD@")
 set_default("libcxx_used", "@LLVM_LIBCXX_USED@")
 
 # LLVM tools dir can be passed in lit parameters, so try to
diff --git a/flang/CMakeLists.txt b/flang/CMakeLists.txt
index 5c9b4462156e04..e6ebd26203a108 100644
--- a/flang/CMakeLists.txt
+++ b/flang/CMakeLists.txt
@@ -70,12 +70,6 @@ if (FLANG_STANDALONE_BUILD)
   if(LLVM_ENABLE_ZLIB)
     find_package(ZLIB REQUIRED)
   endif()
-  
-  # If LLVM links to zstd we need the imported targets so we can too.
-  if(LLVM_ENABLE_ZSTD)
-    find_package(ZSTD REQUIRED)
-  endif()
-
   option(LLVM_ENABLE_PEDANTIC "Compile with pedantic enabled." ON)
   if(CMAKE_COMPILER_IS_GNUCXX)
     set(USE_NO_MAYBE_UNINITIALIZED 1)
diff --git a/lld/ELF/CMakeLists.txt b/lld/ELF/CMakeLists.txt
index 98129a05a36ab9..b37035d3e7429a 100644
--- a/lld/ELF/CMakeLists.txt
+++ b/lld/ELF/CMakeLists.txt
@@ -6,10 +6,6 @@ if(LLVM_ENABLE_ZLIB)
   set(imported_libs ZLIB::ZLIB)
 endif()
 
-if(LLVM_ENABLE_ZSTD)
-  list(APPEND imported_libs zstd)
-endif()
-
 add_lld_library(lldELF
   AArch64ErrataFix.cpp
   Arch/AArch64.cpp
diff --git a/lld/test/lit.site.cfg.py.in b/lld/test/lit.site.cfg.py.in
index e0998ab87d470f..0523762cf6c95e 100644
--- a/lld/test/lit.site.cfg.py.in
+++ b/lld/test/lit.site.cfg.py.in
@@ -18,7 +18,6 @@ config.lld_tools_dir = lit_config.substitute("@CURRENT_TOOLS_DIR@")
 config.target_triple = "@LLVM_TARGET_TRIPLE@"
 config.python_executable = "@Python3_EXECUTABLE@"
 config.have_zlib = @LLVM_ENABLE_ZLIB@
-config.have_zstd = @LLVM_ENABLE_ZSTD@
 config.have_libxar = @LLVM_HAVE_LIBXAR@
 config.have_libxml2 = @LLVM_ENABLE_LIBXML2@
 config.sizeof_void_p = @CMAKE_SIZEOF_VOID_P@
diff --git a/lldb/source/Plugins/Process/gdb-remote/CMakeLists.txt b/lldb/source/Plugins/Process/gdb-remote/CMakeLists.txt
index a4934b17bd76d8..b68bf5e740a121 100644
--- a/lldb/source/Plugins/Process/gdb-remote/CMakeLists.txt
+++ b/lldb/source/Plugins/Process/gdb-remote/CMakeLists.txt
@@ -18,10 +18,6 @@ if(LLVM_ENABLE_ZLIB)
   list(APPEND LLDB_SYSTEM_LIBS ZLIB::ZLIB)
 endif()
 
-if(LLVM_ENABLE_ZSTD)
-  list(APPEND LLDB_SYSTEM_LIBS zstd)
-endif()
-
 add_lldb_library(lldbPluginProcessGDBRemote PLUGIN
   GDBRemoteClientBase.cpp
   GDBRemoteCommunication.cpp
diff --git a/lldb/test/Shell/lit.site.cfg.py.in b/lldb/test/Shell/lit.site.cfg.py.in
index 8292093147006f..29d309ca91836a 100644
--- a/lldb/test/Shell/lit.site.cfg.py.in
+++ b/lldb/test/Shell/lit.site.cfg.py.in
@@ -16,7 +16,6 @@ config.lldb_lit_tools_dir = lit_config.substitute(r"@LLDB_LIT_TOOLS_DIR@")
 config.target_triple = "@LLVM_TARGET_TRIPLE@"
 config.python_executable = "@Python3_EXECUTABLE@"
 config.have_zlib = @LLVM_ENABLE_ZLIB@
-config.have_zstd = @LLVM_ENABLE_ZSTD@
 config.lldb_enable_lzma = @LLDB_ENABLE_LZMA@
 config.host_triple = "@LLVM_HOST_TRIPLE@"
 config.lldb_bitness = 64 if @LLDB_IS_64_BITS@ else 32
diff --git a/llvm/CMakeLists.txt b/llvm/CMakeLists.txt
index 45399dc0537e1c..53c4158866edc9 100644
--- a/llvm/CMakeLists.txt
+++ b/llvm/CMakeLists.txt
@@ -438,8 +438,6 @@ endif()
 
 set(LLVM_ENABLE_ZLIB "ON" CACHE STRING "Use zlib for compression/decompression if available. Can be ON, OFF, or FORCE_ON")
 
-set(LLVM_ENABLE_ZSTD "ON" CACHE STRING "Use zstd for compression/decompression if available. Can be ON, OFF, or FORCE_ON")
-
 set(LLVM_ENABLE_CURL "OFF" CACHE STRING "Use libcurl for the HTTP client if available. Can be ON, OFF, or FORCE_ON")
 
 set(LLVM_ENABLE_HTTPLIB "OFF" CACHE STRING "Use cpp-httplib HTTP server library if available. Can be ON, OFF, or FORCE_ON")
diff --git a/llvm/cmake/config-ix.cmake b/llvm/cmake/config-ix.cmake
index 68b4840d5b868f..d75d2f8421a9e5 100644
--- a/llvm/cmake/config-ix.cmake
+++ b/llvm/cmake/config-ix.cmake
@@ -136,27 +136,6 @@ if(LLVM_ENABLE_ZLIB)
   set(LLVM_ENABLE_ZLIB "${HAVE_ZLIB}")
 endif()
 
-if(LLVM_ENABLE_ZSTD)
-  if(LLVM_ENABLE_ZSTD STREQUAL FORCE_ON)
-    find_package(ZSTD REQUIRED)
-  elseif(NOT LLVM_USE_SANITIZER MATCHES "Memory.*")
-    find_package(ZSTD)
-  endif()
-  if(ZSTD_FOUND)
-    # Check if zstd we found is usable; for example, we may have found a 32-bit
-    # library on a 64-bit system which would result in a link-time failure.
-    cmake_push_check_state()
-    list(APPEND CMAKE_REQUIRED_INCLUDES ${ZSTD_INCLUDE_DIR})
-    list(APPEND CMAKE_REQUIRED_LIBRARIES ${ZSTD_LIBRARY})
-    check_symbol_exists(ZSTD_compress zstd.h HAVE_ZSTD)
-    cmake_pop_check_state()
-    if(LLVM_ENABLE_ZSTD STREQUAL FORCE_ON AND NOT HAVE_ZSTD)
-      message(FATAL_ERROR "Failed to configure zstd")
-    endif()
-  endif()
-  set(LLVM_ENABLE_ZSTD "${HAVE_ZSTD}")
-endif()
-
 if(LLVM_ENABLE_LIBXML2)
   if(LLVM_ENABLE_LIBXML2 STREQUAL FORCE_ON)
     find_package(LibXml2 REQUIRED)
diff --git a/llvm/cmake/modules/FindZSTD.cmake b/llvm/cmake/modules/FindZSTD.cmake
deleted file mode 100644
index 43ccf723213867..00000000000000
--- a/llvm/cmake/modules/FindZSTD.cmake
+++ /dev/null
@@ -1,21 +0,0 @@
-find_path(ZSTD_INCLUDE_DIR
-  NAMES zstd.h
-  HINTS ${ZSTD_ROOT_DIR}/include)
-
-find_library(ZSTD_LIBRARY
-  NAMES zstd
-  HINTS ${ZSTD_ROOT_DIR}/lib)
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(
-    ZSTD DEFAULT_MSG
-    ZSTD_LIBRARY ZSTD_INCLUDE_DIR)
-
-if(ZSTD_FOUND)
-    set(ZSTD_LIBRARIES ${ZSTD_LIBRARY})
-    set(ZSTD_INCLUDE_DIRS ${ZSTD_INCLUDE_DIR})
-endif()
-
-mark_as_advanced(
-  ZSTD_INCLUDE_DIR
-  ZSTD_LIBRARY)
diff --git a/llvm/cmake/modules/LLVMConfig.cmake.in b/llvm/cmake/modules/LLVMConfig.cmake.in
index 0a9d5c24252bb1..d95fa919ef5120 100644
--- a/llvm/cmake/modules/LLVMConfig.cmake.in
+++ b/llvm/cmake/modules/LLVMConfig.cmake.in
@@ -73,12 +73,6 @@ if(LLVM_ENABLE_ZLIB)
   find_package(ZLIB)
 endif()
 
-set(LLVM_ENABLE_ZSTD @LLVM_ENABLE_ZSTD@)
-if(LLVM_ENABLE_ZSTD)
-  set(ZSTD_ROOT @ZSTD_ROOT@)
-  find_package(ZSTD)
-endif()
-
 set(LLVM_ENABLE_LIBXML2 @LLVM_ENABLE_LIBXML2@)
 if(LLVM_ENABLE_LIBXML2)
   find_package(LibXml2)
diff --git a/llvm/include/llvm/Config/llvm-config.h.cmake b/llvm/include/llvm/Config/llvm-config.h.cmake
index 96fbe6f771d2ac..3355f123372039 100644
--- a/llvm/include/llvm/Config/llvm-config.h.cmake
+++ b/llvm/include/llvm/Config/llvm-config.h.cmake
@@ -95,9 +95,6 @@
 /* Define if zlib compression is available */
 #cmakedefine01 LLVM_ENABLE_ZLIB
 
-/* Define if zstd compression is available */
-#cmakedefine01 LLVM_ENABLE_ZSTD
-
 /* Define if LLVM was built with a dependency to the libtensorflow dynamic library */
 #cmakedefine LLVM_HAVE_TF_API
 
diff --git a/llvm/test/lit.site.cfg.py.in b/llvm/test/lit.site.cfg.py.in
index 09210e2e56d4c7..520a54bc108f5a 100644
--- a/llvm/test/lit.site.cfg.py.in
+++ b/llvm/test/lit.site.cfg.py.in
@@ -37,7 +37,6 @@ config.host_ldflags = '@HOST_LDFLAGS@'
 config.llvm_use_intel_jitevents = @LLVM_USE_INTEL_JITEVENTS@
 config.llvm_use_sanitizer = "@LLVM_USE_SANITIZER@"
 config.have_zlib = @LLVM_ENABLE_ZLIB@
-config.have_zstd = @LLVM_ENABLE_ZSTD@
 config.have_libxar = @LLVM_HAVE_LIBXAR@
 config.have_libxml2 = @LLVM_ENABLE_LIBXML2@
 config.have_curl = @LLVM_ENABLE_CURL@
diff --git a/utils/bazel/llvm_configs/llvm-config.h.cmake b/utils/bazel/llvm_configs/llvm-config.h.cmake
index 96fbe6f771d2ac..3355f123372039 100644
--- a/utils/bazel/llvm_configs/llvm-config.h.cmake
+++ b/utils/bazel/llvm_configs/llvm-config.h.cmake
@@ -95,9 +95,6 @@
 /* Define if zlib compression is available */
 #cmakedefine01 LLVM_ENABLE_ZLIB
 
-/* Define if zstd compression is available */
-#cmakedefine01 LLVM_ENABLE_ZSTD
-
 /* Define if LLVM was built with a dependency to the libtensorflow dynamic library */
 #cmakedefine LLVM_HAVE_TF_API