diff --git a/pkgs/applications/science/electronics/gnucap/default.nix b/pkgs/applications/science/electronics/gnucap/default.nix
new file mode 100644
index 00000000000..c51e5de93d6
--- /dev/null
+++ b/pkgs/applications/science/electronics/gnucap/default.nix
@@ -0,0 +1,26 @@
+{ lib, stdenv, fetchurl }:
+
+stdenv.mkDerivation rec {
+  pname = "gnucap";
+  version = "20210107";
+
+  src = fetchurl {
+    url = "https://git.savannah.gnu.org/cgit/gnucap.git/snapshot/${pname}-${version}.tar.gz";
+    sha256 = "12rlwd4mfc54qq1wrx5k8qk578xls5z4isf94ybkf2z6qxk4mhnj";
+  };
+
+  doCheck = true;
+
+  meta = with lib; {
+    description = "Gnu Circuit Analysis Package";
+    longDescription = ''
+Gnucap is a modern general purpose circuit simulator with several advantages over Spice derivatives.
+It performs nonlinear dc and transient analyses, fourier analysis, and ac analysis.
+    '';
+    homepage = "http://www.gnucap.org/";
+    changelog = "https://git.savannah.gnu.org/cgit/gnucap.git/plain/NEWS?h=v${version}";
+    license = licenses.gpl3Plus;
+    platforms = platforms.all;
+    maintainers = [ maintainers.raboof ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 7c3f476d116..027824ab30e 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4854,6 +4854,8 @@ in
 
   gnuapl = callPackage ../development/interpreters/gnu-apl { };
 
+  gnucap = callPackage ../applications/science/electronics/gnucap { };
+
   gnu-cobol = callPackage ../development/compilers/gnu-cobol { };
 
   gnuclad = callPackage ../applications/graphics/gnuclad { };