diff --git a/pkgs/os-specific/darwin/kwm/default.nix b/pkgs/os-specific/darwin/kwm/default.nix
new file mode 100644
index 000000000000..ac231f2dfe3d
--- /dev/null
+++ b/pkgs/os-specific/darwin/kwm/default.nix
@@ -0,0 +1,34 @@
+{ stdenv, fetchzip }:
+
+stdenv.mkDerivation rec {
+  name = "kwm-${version}";
+  version = "4.0.4";
+
+  src = fetchzip {
+    stripRoot = false;
+    url = "https://github.com/koekeishiya/kwm/releases/download/v${version}/Kwm-${version}.zip";
+    sha256 = "07rf4ichq511w8qmvd6s602s7xcyjhjp73d5c615sj82cxvgirwc";
+  };
+
+  # TODO: Build this properly once we have swiftc.
+  dontBuild = true;
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp kwmc $out/bin/kwmc
+    cp kwm overlaylib.dylib $out
+
+    mkdir -p $out/Library/LaunchDaemons
+    cp ${./org.nixos.kwm.plist} $out/Library/LaunchDaemons/org.nixos.kwm.plist
+    substituteInPlace $out/Library/LaunchDaemons/org.nixos.kwm.plist --subst-var out
+  '';
+
+  meta = with stdenv.lib; {
+    description = "Tiling window manager with focus follows mouse for OSX";
+    homepage = https://github.com/koekeishiya/kwm;
+    downloadPage = https://github.com/koekeishiya/kwm/releases;
+    platforms = platforms.darwin;
+    maintainers = with maintainers; [ lnl7 ];
+    license = licenses.mit;
+  };
+}
diff --git a/pkgs/os-specific/darwin/kwm/org.nixos.kwm.plist b/pkgs/os-specific/darwin/kwm/org.nixos.kwm.plist
new file mode 100644
index 000000000000..eafce2ab4a46
--- /dev/null
+++ b/pkgs/os-specific/darwin/kwm/org.nixos.kwm.plist
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>Label</key>
+  <string>org.nixos.kwm</string>
+  <key>ProgramArguments</key>
+  <array>
+    <string>@out@/kwm</string>
+  </array>
+  <key>KeepAlive</key>
+  <true/>
+  <key>Sockets</key>
+  <dict>
+    <key>Listeners</key>
+    <dict>
+      <key>SockServiceName</key>
+      <string>3020</string>
+      <key>SockType</key>
+      <string>dgram</string>
+      <key>SockFamily</key>
+      <string>IPv4</string>
+  </dict>
+</dict>
+</dict>
+</plist>
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 120ec3ccd803..8e7bb79858f0 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -524,6 +524,8 @@ in
 
   oracle-instantclient = callPackage ../development/libraries/oracle-instantclient { };
 
+  kwm = callPackage ../os-specific/darwin/kwm { };
+
   khd = callPackage ../os-specific/darwin/khd {
     inherit (darwin.apple_sdk.frameworks) Carbon Cocoa;
   };