diff --git a/pkgs/tools/archivers/lha/default.nix b/pkgs/tools/archivers/lha/default.nix
new file mode 100644
index 000000000000..f6b5c2bd1350
--- /dev/null
+++ b/pkgs/tools/archivers/lha/default.nix
@@ -0,0 +1,27 @@
+{stdenv, lib, fetchFromGitHub, autoreconfHook}:
+
+stdenv.mkDerivation {
+  pname = "lha";
+  version = "unstable-2021-01-07";
+
+  src = fetchFromGitHub {
+    owner = "jca02266";
+    repo = "lha";
+    rev = "03475355bc6311f7f816ea9a88fb34a0029d975b";
+    sha256 = "18w2x0g5yq89yxkxh1fmb05lz4hw7a3b4jmkk95gvh11mwbbr5lm";
+  };
+
+  nativeBuildInputs = [ autoreconfHook ];
+
+  meta = with lib; {
+    description = "LHa is an archiver and compressor using the LZSS and Huffman encoding compression algorithms";
+    platforms = platforms.unix;
+    maintainers = [ maintainers.sander ];
+    # Some of the original LhA code has been rewritten and the current author
+    # considers adopting a "true" free and open source license for it.
+    # However, old code is still covered by the original LHa license, which is
+    # not a free software license (it has additional requirements on commercial
+    # use).
+    license = licenses.unfree;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index df8cf1d91f3a..4177b35788bf 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6357,6 +6357,8 @@ in
 
   lf = callPackage ../tools/misc/lf {};
 
+  lha = callPackage ../tools/archivers/lha { };
+
   lhasa = callPackage ../tools/compression/lhasa {};
 
   libcpuid = callPackage ../tools/misc/libcpuid { };