diff --git a/Formula/zeromq@4.1.rb b/Formula/zeromq@4.1.rb
new file mode 100644
index 0000000000..4fd92b5771
--- /dev/null
+++ b/Formula/zeromq@4.1.rb
@@ -0,0 +1,54 @@
+class ZeromqAT41 < Formula
+  desc "High-performance, asynchronous messaging library"
+  homepage "http://www.zeromq.org/"
+  url "https://github.com/zeromq/zeromq4-1/releases/download/v4.1.6/zeromq-4.1.6.tar.gz"
+  sha256 "02ebf60a43011e770799336365bcbce2eb85569e9b5f52aa0d8cc04672438a0a"
+
+  keg_only :versioned_formula
+
+  option "with-libpgm", "Build with PGM extension"
+  option "with-norm", "Build with NORM extension"
+
+  depends_on "pkg-config" => :build
+  depends_on "libpgm" => :optional
+  depends_on "libsodium" => :optional
+  depends_on "norm" => :optional
+
+  def install
+    args = ["--disable-dependency-tracking", "--prefix=#{prefix}"]
+    if build.with? "libpgm"
+      # Use HB libpgm-5.2 because their internal 5.1 is b0rked.
+      ENV["pgm_CFLAGS"] = `pkg-config --cflags openpgm-5.2`.chomp
+      ENV["pgm_LIBS"] = `pkg-config --libs openpgm-5.2`.chomp
+      args << "--with-pgm"
+    end
+
+    if build.with? "libsodium"
+      args << "--with-libsodium"
+    else
+      args << "--without-libsodium"
+    end
+
+    args << "--with-norm" if build.with? "norm"
+
+    system "./configure", *args
+    system "make"
+    system "make", "install"
+  end
+
+  test do
+    (testpath/"test.c").write <<-EOS.undent
+      #include <assert.h>
+      #include <zmq.h>
+
+      int main()
+      {
+        zmq_msg_t query;
+        assert(0 == zmq_msg_init_size(&query, 1));
+        return 0;
+      }
+    EOS
+    system ENV.cc, "test.c", "-I#{include}", "-L#{lib}", "-lzmq", "-o", "test"
+    system "./test"
+  end
+end