diff --git a/Casks/o/openthesaurus-deutsch.rb b/Casks/o/openthesaurus-deutsch.rb
new file mode 100644
index 0000000000..a5e851f92c
--- /dev/null
+++ b/Casks/o/openthesaurus-deutsch.rb
@@ -0,0 +1,21 @@
+cask "openthesaurus-deutsch" do
+  version "2023.12.28"
+  sha256 "cb12ab497c71d0aa56cfa6ae2df4b5e5b9fb7eed424c35dd82400cc9ce66a9e5"
+
+  url "https://github.com/Tekl/openthesaurus-deutsch/releases/download/v#{version}/OpenThesaurus_Deutsch_dictionaryfile.zip",
+      verified: "github.com/Tekl/openthesaurus-deutsch/"
+  name "OpenThesaurus Deutsch Dictionary plugin"
+  desc "German thesaurus for Apple Dictionary"
+  homepage "https://tekl.de/lexikon-plug-ins/openthesaurus-deutsch-lexikon-plugin"
+
+  livecheck do
+    url :url
+    strategy :github_latest
+  end
+
+  depends_on macos: ">= :el_capitan"
+
+  dictionary "OpenThesaurus Deutsch.dictionary"
+
+  # No zap stanza required
+end