diff --git a/Formula/lib/libunistring.rb b/Formula/lib/libunistring.rb
new file mode 100644
index 00000000000..c80163f3513
--- /dev/null
+++ b/Formula/lib/libunistring.rb
@@ -0,0 +1,43 @@
+class Libunistring < Formula
+  desc "C string library for manipulating Unicode strings"
+  homepage "https://www.gnu.org/software/libunistring/"
+  url "https://ftp.gnu.org/gnu/libunistring/libunistring-1.2.tar.gz"
+  mirror "https://ftpmirror.gnu.org/libunistring/libunistring-1.2.tar.gz"
+  mirror "http://ftp.gnu.org/gnu/libunistring/libunistring-1.2.tar.gz"
+  sha256 "fd6d5662fa706487c48349a758b57bc149ce94ec6c30624ec9fdc473ceabbc8e"
+  license any_of: ["GPL-2.0-only", "LGPL-3.0-or-later"]
+
+  bottle do
+    root_url "https://github.com/gromgit/homebrew-core-aarch64_linux/releases/download/libunistring-1.2"
+    sha256 cellar: :any_skip_relocation, aarch64_linux: "271b35c0744b9cb30c0c24074b37bbf541d9e88286dd31853d8653becb6cdea7"
+  end
+
+  def install
+    system "./configure", "--disable-dependency-tracking",
+                          "--disable-silent-rules",
+                          "--prefix=#{prefix}"
+    system "make"
+    system "make", "check" if !OS.mac? || MacOS.version < :sonoma
+    system "make", "install"
+  end
+
+  test do
+    (testpath/"test.c").write <<~EOS
+      #include <uniname.h>
+      #include <unistdio.h>
+      #include <unistr.h>
+      #include <stdlib.h>
+      int main (void) {
+        uint32_t s[2] = {};
+        uint8_t buff[12] = {};
+        if (u32_uctomb (s, unicode_name_character ("BEER MUG"), sizeof s) != 1) abort();
+        if (u8_sprintf (buff, "%llU", s) != 4) abort();
+        printf ("%s\\n", buff);
+        return 0;
+      }
+    EOS
+    system ENV.cc, "test.c", "-I#{include}", "-L#{lib}", "-lunistring",
+                   "-o", "test"
+    assert_equal "🍺", shell_output("./test").chomp
+  end
+end