diff --git a/pkgs/development/libraries/libucl/default.nix b/pkgs/development/libraries/libucl/default.nix
new file mode 100644
index 00000000000..b9b33453a4c
--- /dev/null
+++ b/pkgs/development/libraries/libucl/default.nix
@@ -0,0 +1,58 @@
+{ stdenv
+, fetchFromGitHub
+, pkg-config
+, autoreconfHook
+, curl
+, lua
+, openssl
+, features ? {
+    urls = false;
+    # Upstream enables regex by default
+    regex = true;
+    # Signature support is broken with openssl 1.1.1: https://github.com/vstakhov/libucl/issues/203
+    signatures = false;
+    lua = false;
+    utils = false;
+  }
+}:
+
+let
+  featureDeps = {
+    urls = [ curl ];
+    signatures = [ openssl ];
+    lua = [ lua ];
+  };
+in
+stdenv.mkDerivation rec {
+  pname = "libucl";
+  version = "0.8.1";
+
+  src = fetchFromGitHub {
+    owner = "vstakhov";
+    repo = pname;
+    rev = version;
+    sha256 = "1h52ldxankyhbbm1qbqz1f2q0j03c1b4mig7343bs3mc6fpm18gf";
+  };
+
+  nativeBuildInputs = [ pkg-config autoreconfHook ];
+
+  buildInputs = with stdenv.lib;
+    concatLists (
+      mapAttrsToList (feat: enabled:
+        optionals enabled (featureDeps."${feat}" or [])
+      ) features
+    );
+
+  enableParallelBuilding = true;
+
+  configureFlags = with stdenv.lib;
+    mapAttrsToList (feat: enabled: strings.enableFeature enabled feat) features;
+
+  meta = with stdenv.lib; {
+    description = "Universal configuration library parser";
+    homepage = "https://github.com/vstakhov/libucl";
+    license = licenses.bsd2;
+    platforms = platforms.unix;
+    maintainers = with maintainers; [ jpotier ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 62f5aca336b..142ed2bf149 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5008,6 +5008,8 @@ in
 
   libiberty = callPackage ../development/libraries/libiberty { };
 
+  libucl = callPackage ../development/libraries/libucl { };
+
   libxc = callPackage ../development/libraries/libxc { };
 
   libxcomp = callPackage ../development/libraries/libxcomp { };