diff --git a/pkgs/applications/science/math/eigenmath/default.nix b/pkgs/applications/science/math/eigenmath/default.nix
new file mode 100644
index 000000000000..ddeba369366e
--- /dev/null
+++ b/pkgs/applications/science/math/eigenmath/default.nix
@@ -0,0 +1,39 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, fetchpatch
+}:
+
+stdenv.mkDerivation rec {
+  pname = "eigenmath";
+  version = "unstable-2023-03-05";
+
+  src = fetchFromGitHub {
+    owner = "georgeweigt";
+    repo = pname;
+    rev = "633d5b0b2f2b87b6377bc4f715604f79b17aab66";
+    hash = "sha256-5LOSyfeGavWesAR7jqd37Z845iyNstr/cJdQiWHlIPg=";
+  };
+
+  patches = [
+    # treewide: use $(CC) instead of hardcoding gcc
+    # https://github.com/georgeweigt/eigenmath/pull/18
+    (fetchpatch {
+      url = "https://github.com/georgeweigt/eigenmath/commit/70551b3624ea25911f6de608c9ee9833885ab0b8.patch";
+      hash = "sha256-g2crXOlC5SM1vAq87Vg/2zWMvx9DPFWEPaTrrPbcDZ0=";
+    })
+  ];
+
+  installPhase = ''
+    runHook preInstall
+    install -Dm555 eigenmath "$out/bin/eigenmath"
+    runHook postInstall
+  '';
+
+  meta = with lib;{
+    description = "Computer algebra system written in C";
+    homepage = "https://georgeweigt.github.io";
+    license = licenses.bsd2;
+    maintainers = with maintainers; [ nickcao ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index e2481e578fc8..04074f2a09e7 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -19671,6 +19671,8 @@ with pkgs;
 
   eigen2 = callPackage ../development/libraries/eigen/2.0.nix {};
 
+  eigenmath = callPackage ../applications/science/math/eigenmath { };
+
   vapoursynth = callPackage ../development/libraries/vapoursynth {
     inherit (darwin.apple_sdk.frameworks) ApplicationServices;
   };