diff --git a/Makefile.fetch b/Makefile.fetch
index c80ddfd004d6..30ab92eba3f6 100644
--- a/Makefile.fetch
+++ b/Makefile.fetch
@@ -134,6 +134,7 @@ $(WORKDIR)/download: $(BUILDDIR)/config_$(gb_Side).mk $(SRCDIR)/download.lst $(S
 		$(call fetch_Optional,GPGMEPP,GPGME_TARBALL) \
 		$(call fetch_Optional,GRAPHITE,GRAPHITE_TARBALL) \
 		$(call fetch_Optional,HARFBUZZ,HARFBUZZ_TARBALL) \
+		$(call fetch_Optional,HIGHWAY,HIGHWAY_TARBALL) \
 		$(call fetch_Optional,HSQLDB,HSQLDB_TARBALL) \
 		$(call fetch_Optional,HUNSPELL,HUNSPELL_TARBALL) \
 		$(call fetch_Optional,HYPHEN,HYPHEN_TARBALL) \
diff --git a/RepositoryExternal.mk b/RepositoryExternal.mk
index ef9d1f014afe..3125cae9d9e8 100644
--- a/RepositoryExternal.mk
+++ b/RepositoryExternal.mk
@@ -514,6 +514,24 @@ else
 endif
 
 
+ifneq ($(filter HIGHWAY,$(BUILD_TYPE)),)
+
+define gb_LinkTarget__use_highway
+$(call gb_LinkTarget_set_include,$(1),\
+	-I$(gb_UnpackedTarball_workdir)/highway \
+	$$(INCLUDE) \
+)
+$(call gb_LinkTarget_use_static_libraries,$(1),highway)
+
+endef
+
+define gb_ExternalProject__use_highway
+$(call gb_ExternalProject_use_static_libraries,$(1),highway)
+
+endef
+
+endif # HIGHWAY
+
 ifneq ($(SYSTEM_LIBJPEG),)
 
 define gb_LinkTarget__use_libjpeg
diff --git a/download.lst b/download.lst
index 5d0709a6a556..95264557fec4 100644
--- a/download.lst
+++ b/download.lst
@@ -292,6 +292,11 @@ HARFBUZZ_TARBALL := harfbuzz-14.3.1.tar.xz
 # three static lines
 # so that git cherry-pick
 # will not run into conflicts
+HIGHWAY_SHA256SUM := 36f672ab48ddb3c8555e9e89e16fe400cd7d16c6eb455a1a3d0c146a63ababdc
+HIGHWAY_TARBALL := highway-1.4.0.tar.gz
+# three static lines
+# so that git cherry-pick
+# will not run into conflicts
 HSQLDB_SHA256SUM := d30b13f4ba2e3b6a2d4f020c0dee0a9fb9fc6fbcc2d561f36b78da4bf3802370
 HSQLDB_TARBALL := 17410483b5b5f267aa18b7e00b65e6e0-hsqldb_1_8_0.zip
 # three static lines
diff --git a/external/Module_external.mk b/external/Module_external.mk
index ced11788f3ae..9110f10acf24 100644
--- a/external/Module_external.mk
+++ b/external/Module_external.mk
@@ -44,6 +44,7 @@ $(eval $(call gb_Module_add_moduledirs,external,\
 	$(call gb_Helper_optional,GPGMEPP,gpgmepp) \
 	$(call gb_Helper_optional,GRAPHITE,graphite) \
 	$(call gb_Helper_optional,HARFBUZZ,harfbuzz) \
+	$(call gb_Helper_optional,HIGHWAY,highway) \
 	$(call gb_Helper_optional,HSQLDB,hsqldb) \
 	$(call gb_Helper_optional,HUNSPELL,hunspell) \
 	$(call gb_Helper_optional,HYPHEN,hyphen) \
diff --git a/external/highway/Makefile b/external/highway/Makefile
new file mode 100644
index 000000000000..e4968cf85fb6
--- /dev/null
+++ b/external/highway/Makefile
@@ -0,0 +1,7 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+
+module_directory:=$(dir $(realpath $(firstword $(MAKEFILE_LIST))))
+
+include $(module_directory)/../../solenv/gbuild/partial_build.mk
+
+# vim: set noet sw=4 ts=4:
diff --git a/external/highway/Module_highway.mk b/external/highway/Module_highway.mk
new file mode 100644
index 000000000000..3ba9f73be9c9
--- /dev/null
+++ b/external/highway/Module_highway.mk
@@ -0,0 +1,17 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Module_Module,highway))
+
+$(eval $(call gb_Module_add_targets,highway,\
+    StaticLibrary_highway \
+    UnpackedTarball_highway \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/external/highway/README b/external/highway/README
new file mode 100644
index 000000000000..ab1fe14dfd20
--- /dev/null
+++ b/external/highway/README
@@ -0,0 +1,4 @@
+According to the library's own README: "Highway is a C++ library that provides
+portable SIMD/vector intrinsics."
+
+From [https://github.com/google/highway].
diff --git a/external/highway/StaticLibrary_highway.mk b/external/highway/StaticLibrary_highway.mk
new file mode 100644
index 000000000000..5adbde67684d
--- /dev/null
+++ b/external/highway/StaticLibrary_highway.mk
@@ -0,0 +1,29 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_StaticLibrary_StaticLibrary,highway))
+
+$(eval $(call gb_StaticLibrary_use_unpacked,highway,highway))
+
+$(eval $(call gb_StaticLibrary_set_warnings_disabled,highway))
+
+$(eval $(call gb_StaticLibrary_set_include,highway,\
+    -I$(WORKDIR)/UnpackedTarball/highway \
+    $$(INCLUDE) \
+))
+
+$(eval $(call gb_StaticLibrary_set_generated_cxx_suffix,highway,cc))
+
+$(eval $(call gb_StaticLibrary_add_generated_exception_objects,highway,\
+    UnpackedTarball/highway/hwy/timer \
+    UnpackedTarball/highway/hwy/targets \
+    UnpackedTarball/highway/hwy/abort \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/external/highway/UnpackedTarball_highway.mk b/external/highway/UnpackedTarball_highway.mk
new file mode 100644
index 000000000000..99e4cd88030e
--- /dev/null
+++ b/external/highway/UnpackedTarball_highway.mk
@@ -0,0 +1,14 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_UnpackedTarball_UnpackedTarball,highway))
+
+$(eval $(call gb_UnpackedTarball_set_tarball,highway,$(HIGHWAY_TARBALL)))
+
+# vim: set noet sw=4 ts=4:
diff --git a/readlicense_oo/license/license.xml b/readlicense_oo/license/license.xml
index fa6abbf2c1af..63fce3a777be 100644
--- a/readlicense_oo/license/license.xml
+++ b/readlicense_oo/license/license.xml
@@ -600,6 +600,41 @@
         "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
         ENHANCEMENTS, OR MODIFICATIONS.</p>
     </div>
+    <div class="HIGHWAY">
+    <h2>highway</h2>
+    <p>The following software may be included in this product: highway. highway
+    is dual-licensed under the Apache License 2.0 or the BSD 3-Clause
+    License.</p>
+    <p><a href="#a__Apache_License_version_2_0">Jump to Apache License Version
+    2.0</a></p>
+    <h3>BSD 3-Clause License</h3>
+    <p>Copyright (c) The Highway Project Authors. All rights reserved.</p>
+    <p>Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are
+    met:</p>
+    <ol>
+        <li>Redistributions of source code must retain the above copyright
+        notice, this list of conditions and the following disclaimer.</li>
+        <li>Redistributions in binary form must reproduce the above copyright
+        notice, this list of conditions and the following disclaimer in the
+        documentation and/or other materials provided with the
+        distribution.</li>
+        <li>Neither the name of the copyright holder nor the names of its
+        contributors may be used to endorse or promote products derived from
+        this software without specific prior written permission.</li>
+    </ol>
+    <p>THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+    IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+    THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+    PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+    CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+    EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+    OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+    WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+    OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+    ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</p>
+    </div>
     <div class="HSQLDB">
         <h2>HSQLDB</h2>
         <p>The following software may be included in this product: HSQLDB. Use of any of this software is governed by