I couldn’t find an Apache Kafka Visio stencil, so I’ve created one myself from the Kafka logo.

It’s available here: Apache Kafka Visio stencil

Just download the zip file and copy the stencil file inside it to “My Documents\My Shapes” in your user directory, and it should automatically appear inside Visio’s “My Stencils” section. If you run into any problems or have any suggestions, let me know in the comments below.