Etch may refer to:
- Etch (protocol): an open source, cross-platform, multi-language framework for building network services released by Cisco Systems into the Apache Software Foundation
- Etch, a character from the film Toy Story, based on the Etch A Sketch
- Etch, a UK based design agency.
- Etch, the codename for Debian GNU/Linux 4.0 (itself named after the Toy Story character)