diff --git a/pkgs/development/tools/database/pg_activity/default.nix b/pkgs/development/tools/database/pg_activity/default.nix
new file mode 100644
index 000000000000..6754e76a8977
--- /dev/null
+++ b/pkgs/development/tools/database/pg_activity/default.nix
@@ -0,0 +1,31 @@
+{ python3Packages, fetchFromGitHub, lib }:
+
+python3Packages.buildPythonApplication rec {
+  pname = "pg_activity";
+  version = "2.2.0";
+  disabled = python3Packages.pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "dalibo";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "145yqjb2rr1k0xz6lclk4fy5zbwcbfkzvn52g9ijjrfl08y15agm";
+  };
+
+  propagatedBuildInputs = with python3Packages; [
+    attrs
+    blessed
+    humanize
+    psutil
+    psycopg2
+  ];
+
+  pythonImportsCheck = [ "pgactivity" ];
+
+  meta = with lib; {
+    description = "A top like application for PostgreSQL server activity monitoring";
+    homepage = "https://github.com/dalibo/pg_activity";
+    license = licenses.postgresql;
+    maintainers = with maintainers; [ mausch ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index eebb5116792c..2b326575a8a7 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -8029,6 +8029,8 @@ with pkgs;
 
   peco = callPackage ../tools/text/peco { };
 
+  pg_activity = callPackage ../development/tools/database/pg_activity { };
+
   pg_checksums = callPackage ../development/tools/database/pg_checksums { };
 
   pg_flame = callPackage ../tools/misc/pg_flame { };