diff --git a/pkgs/desktops/lomiri/default.nix b/pkgs/desktops/lomiri/default.nix
index 27869f6e92808..ba4c6446d4c09 100644
--- a/pkgs/desktops/lomiri/default.nix
+++ b/pkgs/desktops/lomiri/default.nix
@@ -10,6 +10,7 @@ let
     #### Development tools / libraries
     cmake-extras = callPackage ./development/cmake-extras { };
     deviceinfo = callPackage ./development/deviceinfo { };
+    geonames = callPackage ./development/geonames { };
     gmenuharness = callPackage ./development/gmenuharness { };
     lomiri-api = callPackage ./development/lomiri-api { };
   };
diff --git a/pkgs/desktops/lomiri/development/geonames/default.nix b/pkgs/desktops/lomiri/development/geonames/default.nix
new file mode 100644
index 0000000000000..b3ee9dc25ef7b
--- /dev/null
+++ b/pkgs/desktops/lomiri/development/geonames/default.nix
@@ -0,0 +1,122 @@
+{ stdenv
+, lib
+, fetchFromGitLab
+, fetchpatch
+, gitUpdater
+, testers
+, buildPackages
+, cmake
+, docbook-xsl-nons
+, docbook_xml_dtd_45
+, gettext
+, glib
+, glibcLocales
+, withExamples ? true
+, gtk3
+# Uses gtkdoc-scan* tools, which produces a binary linked against lib for hostPlatform and executes it to generate docs
+, withDocumentation ? stdenv.buildPlatform.canExecute stdenv.hostPlatform
+, gtk-doc
+, pkg-config
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "geonames";
+  version = "0.3.0";
+
+  src = fetchFromGitLab {
+    owner = "ubports";
+    repo = "development/core/geonames";
+    rev = finalAttrs.version;
+    hash = "sha256-Mo7Khj2pgdJ9kT3npFXnh1WTSsY/B1egWTccbAXFNY8=";
+  };
+
+  outputs = [
+    "out"
+    "dev"
+  ] ++ lib.optionals withExamples [
+    "bin"
+  ] ++ lib.optionals withDocumentation [
+    "doc"
+  ];
+
+  patches = [
+    # Improves install locations of demo & docs
+    # Remove when https://gitlab.com/ubports/development/core/geonames/-/merge_requests/3 merged & in release
+    (fetchpatch {
+      name = "0001-geonames-Use-GNUInstallDirs-more.patch";
+      url = "https://gitlab.com/OPNA2608/geonames/-/commit/e64a391fc213b2629da1c8bbf975fd62a2973c51.patch";
+      hash = "sha256-HPYDtIy1WUrZLPzvKh4aezrT/LniZkNX+PeQ9YB85RY=";
+    })
+  ];
+
+  postPatch = ''
+    patchShebangs src/generate-locales.sh tests/setup-test-env.sh
+  '';
+
+  strictDeps = true;
+
+  nativeBuildInputs = [
+    cmake
+    gettext
+    glib # glib-compile-resources
+    pkg-config
+  ] ++ lib.optionals withDocumentation [
+    docbook-xsl-nons
+    docbook_xml_dtd_45
+    gtk-doc
+  ];
+
+  buildInputs = [
+    glib
+  ] ++ lib.optionals withExamples [
+    gtk3
+  ];
+
+  # Tests need to be able to check locale
+  LC_ALL = lib.optionalString finalAttrs.doCheck "en_US.UTF-8";
+  nativeCheckInputs = [
+    glibcLocales
+  ];
+
+  makeFlags = [
+    # gtkdoc-scan runs ld, can't find qsort & strncpy symbols
+    "LD=${stdenv.cc.targetPrefix}cc"
+  ];
+
+  cmakeFlags = [
+    "-DWANT_DOC=${lib.boolToString withDocumentation}"
+    "-DWANT_DEMO=${lib.boolToString withExamples}"
+    "-DWANT_TESTS=${lib.boolToString finalAttrs.doCheck}"
+    # Keeps finding & using glib-compile-resources from buildInputs otherwise
+    "-DCMAKE_PROGRAM_PATH=${lib.makeBinPath [ buildPackages.glib.dev ]}"
+  ] ++ lib.optionals (!stdenv.buildPlatform.canExecute stdenv.hostPlatform) [
+    # only for cross without native execute support because the canExecute "emulator" call has a format that I can't get CMake to accept
+    "-DCMAKE_CROSSCOMPILING_EMULATOR=${stdenv.hostPlatform.emulator buildPackages}"
+  ];
+
+  preInstall = lib.optionalString withDocumentation ''
+    # gtkdoc-mkhtml generates images without write permissions, errors out during install
+    chmod +w doc/reference/html/*
+  '';
+
+  doCheck = stdenv.buildPlatform.canExecute stdenv.hostPlatform;
+
+  passthru = {
+    tests.pkg-config = testers.testMetaPkgConfig finalAttrs.finalPackage;
+    updateScript = gitUpdater { };
+  };
+
+  meta = with lib; {
+    description = "Parse and query the geonames database dump";
+    homepage = "https://gitlab.com/ubports/development/core/geonames";
+    license = licenses.gpl3Only;
+    maintainers = teams.lomiri.members;
+    platforms = platforms.all;
+    # Cross requires hostPlatform emulation during build
+    # https://gitlab.com/ubports/development/core/geonames/-/issues/1
+    broken = stdenv.buildPlatform != stdenv.hostPlatform && !stdenv.hostPlatform.emulatorAvailable buildPackages;
+    pkgConfigModules = [
+      "geonames"
+    ];
+  };
+})