diff --git a/pkgs/development/python-modules/gpyopt/default.nix b/pkgs/development/python-modules/gpyopt/default.nix
new file mode 100644
index 000000000000..08099a867889
--- /dev/null
+++ b/pkgs/development/python-modules/gpyopt/default.nix
@@ -0,0 +1,29 @@
+{ stdenv, buildPythonPackage, fetchFromGitHub
+, numpy, scipy, gpy, emcee, nose }:
+
+buildPythonPackage rec {
+  pname = "GPyOpt";
+  version = "unstable-2019-09-25";
+
+  src = fetchFromGitHub {
+    repo   = pname;
+    owner  = "SheffieldML";
+    rev    = "249b8ff29c52c12ed867f145a627d529372022d8";
+    sha256 = "1ywaw1kpdr7dv4s4cr7afmci86sw7w61178gs45b0lq08652zdlb";
+  };
+
+  doCheck = false;  # requires several packages not available in Nix
+
+  checkInputs = [ nose ];
+
+  checkPhase = "nosetests -v GPyOpt/testing";
+
+  propagatedBuildInputs = [ numpy scipy gpy emcee ];
+
+  meta = with stdenv.lib; {
+    description = "Bayesian optimization toolbox in Python";
+    homepage = https://sheffieldml.github.io/GPyOpt;
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ bcdarwin ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 1c38b47576ab..15eb8b79f489 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2433,6 +2433,8 @@ in {
 
   gpy = callPackage ../development/python-modules/gpy { };
 
+  gpyopt = callPackage ../development/python-modules/gpyopt { };
+
   gitdb = callPackage ../development/python-modules/gitdb { };
 
   gitdb2 = callPackage ../development/python-modules/gitdb2 { };