diff --git a/llvm/docs/CommandGuide/index.rst b/llvm/docs/CommandGuide/index.rst
--- a/llvm/docs/CommandGuide/index.rst
+++ b/llvm/docs/CommandGuide/index.rst
@@ -19,6 +19,7 @@
    opt
    llc
    lli
+   llvm-libtool-darwin
    llvm-link
    llvm-lib
    llvm-lipo
diff --git a/llvm/docs/CommandGuide/llvm-libtool-darwin.rst b/llvm/docs/CommandGuide/llvm-libtool-darwin.rst
new file mode 100644
--- /dev/null
+++ b/llvm/docs/CommandGuide/llvm-libtool-darwin.rst
@@ -0,0 +1,45 @@
+llvm-libtool-darwin - LLVM tool for creating libraries for Darwin
+=================================================================
+
+.. program:: llvm-libtool-darwin
+
+SYNOPSIS
+--------
+
+:program:`llvm-libtool-darwin` [*options*] *<input files>*
+
+DESCRIPTION
+-----------
+
+:program:`llvm-libtool-darwin` is a tool for creating static and dynamic
+libraries for Darwin.
+
+For most scenarios, it works as a drop-in replacement for cctool's
+:program:`libtool`.
+
+OPTIONS
+--------
+:program:`llvm-libtool-darwin` supports the following options:
+
+.. option:: -help, -h
+
+  Display usage information and exit.
+
+.. option:: -version
+
+  Display the version of this program.
+
+.. option:: -o filename
+
+ Specify the output file name. Must be specified exactly once.
+
+EXIT STATUS
+-----------
+
+:program:`llvm-libtool-darwin` exits with a non-zero exit code if there is an error.
+Otherwise, it exits with code 0.
+
+BUGS
+----
+
+To report bugs, please visit <https://bugs.llvm.org/>.
diff --git a/llvm/test/CMakeLists.txt b/llvm/test/CMakeLists.txt
--- a/llvm/test/CMakeLists.txt
+++ b/llvm/test/CMakeLists.txt
@@ -82,6 +82,7 @@
           llvm-install-name-tool
           llvm-jitlink
           llvm-lib
+          llvm-libtool-darwin
           llvm-link
           llvm-lipo
           llvm-locstats
diff --git a/llvm/test/tools/llvm-libtool-darwin/help-message.test b/llvm/test/tools/llvm-libtool-darwin/help-message.test
new file mode 100644
--- /dev/null
+++ b/llvm/test/tools/llvm-libtool-darwin/help-message.test
@@ -0,0 +1,10 @@
+## This test checks that the help message is displayed correctly.
+
+# RUN: llvm-libtool-darwin -h | FileCheck --check-prefix=LIBTOOL-USAGE %s --match-full-lines
+# RUN: llvm-libtool-darwin --help | FileCheck --check-prefix=LIBTOOL-USAGE %s --match-full-lines
+# RUN: not llvm-libtool-darwin -abcabc 2>&1 | FileCheck --check-prefix=UNKNOWN-ARG %s
+# RUN: not llvm-libtool-darwin --abcabc 2>&1 | FileCheck --check-prefix=UNKNOWN-ARG %s
+
+# LIBTOOL-USAGE: USAGE: llvm-libtool-darwin{{(\.exe)?}} [options] <input files>
+
+# UNKNOWN-ARG: Unknown command line argument '{{-+}}abcabc'
diff --git a/llvm/test/tools/llvm-libtool-darwin/invalid-arguments.test b/llvm/test/tools/llvm-libtool-darwin/invalid-arguments.test
new file mode 100644
--- /dev/null
+++ b/llvm/test/tools/llvm-libtool-darwin/invalid-arguments.test
@@ -0,0 +1,25 @@
+## This test checks that an error is thrown in case of invalid argument(s).
+
+## Missing input file:
+# RUN: not llvm-libtool-darwin -o libOut.a 2>&1 | \
+# RUN:   FileCheck %s --check-prefix=NO-INPUT
+
+# NO-INPUT: Must specify at least 1 positional argument
+
+## Missing output file:
+# RUN: not llvm-libtool-darwin %t 2>&1 | \
+# RUN:   FileCheck %s --check-prefix=NO-OUTPUT
+
+# NO-OUTPUT: for the --output option: must be specified at least once!
+
+## Missing argument to -o:
+# RUN: not llvm-libtool-darwin %t -o 2>&1 | \
+# RUN:   FileCheck %s --check-prefix=MISSING
+
+# MISSING: for the -o option: requires a value!
+
+## Passing in two output files:
+# RUN: not llvm-libtool-darwin %t -o Output1 -o Output2 2>&1 | \
+# RUN:   FileCheck %s --check-prefix=DOUBLE-OUTPUT
+
+# DOUBLE-OUTPUT: for the --output option: must occur exactly one time!
diff --git a/llvm/tools/llvm-libtool-darwin/CMakeLists.txt b/llvm/tools/llvm-libtool-darwin/CMakeLists.txt
new file mode 100644
--- /dev/null
+++ b/llvm/tools/llvm-libtool-darwin/CMakeLists.txt
@@ -0,0 +1,7 @@
+set(LLVM_LINK_COMPONENTS
+  Support
+  )
+
+add_llvm_tool(llvm-libtool-darwin
+  llvm-libtool-darwin.cpp
+)
diff --git a/llvm/tools/llvm-libtool-darwin/LLVMBuild.txt b/llvm/tools/llvm-libtool-darwin/LLVMBuild.txt
new file mode 100644
--- /dev/null
+++ b/llvm/tools/llvm-libtool-darwin/LLVMBuild.txt
@@ -0,0 +1,20 @@
+;===- ./tools/llvm-libtool-darwin/LVMBuild.txt -----------------*- Conf -*--===;
+;
+; Part of the LLVM Project, 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
+;
+;===------------------------------------------------------------------------===;
+;
+; This is an LLVMBuild description file for the components in this subdirectory.
+;
+; For more information on the LLVMBuild system, please see:
+;
+;   http://llvm.org/docs/LLVMBuild.html
+;
+;===------------------------------------------------------------------------===;
+[component_0]
+type = Tool
+name = llvm-libtool-darwin
+parent = Tools
+required_libraries = Support
diff --git a/llvm/tools/llvm-libtool-darwin/llvm-libtool-darwin.cpp b/llvm/tools/llvm-libtool-darwin/llvm-libtool-darwin.cpp
new file mode 100644
--- /dev/null
+++ b/llvm/tools/llvm-libtool-darwin/llvm-libtool-darwin.cpp
@@ -0,0 +1,33 @@
+//===-- llvm-libtool-darwin.cpp - a tool for creating libraries -----------===//
+//
+// Part of the LLVM Project, 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
+//
+//===----------------------------------------------------------------------===//
+//
+// A utility for creating static and dynamic libraries for Darwin.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/InitLLVM.h"
+
+using namespace llvm;
+
+static cl::opt<std::string> OutputFile("output",
+                                       cl::desc("Specify output filename"),
+                                       cl::value_desc("filename"),
+                                       cl::Required);
+static cl::alias OutputFileShort("o", cl::desc("Alias for -output"),
+                                 cl::aliasopt(OutputFile));
+
+static cl::list<std::string>
+    InputFiles(cl::Positional, cl::desc("<input files>"), cl::OneOrMore);
+
+int main(int Argc, char **Argv) {
+  InitLLVM X(Argc, Argv);
+  cl::ParseCommandLineOptions(Argc, Argv, "llvm-libtool\n");
+
+  return EXIT_SUCCESS;
+}