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, the codename for Debian GNU/Linux 4.0 (itself named after the Toy Story character)

East Tennessee Children's Hospital is a private, independent, not-for-profit, 152-bed pediatric medical center in Knoxville, Tennessee. The hospital's primary service area includes 16 counties in East Tennessee, and its secondary service area includes counties in southwest Virginia, southeast Kentucky and western North Carolina.

Der Begriff Etch steht für

Debian est un  système d'exploitation reposant sur les principes du logiciel libre et développé de façon bénévole par l'intermédiaire d'Internet.

Debian o Proyecto Debian (en inglés Debian Project) es una comunidad conformada por desarrolladores y usuarios, que pretende crear y mantener un sistema operativo GNU basado en software libre precompilado y empaquetado, en un formato sencillo en múltiples arquitecturas de computador y en varios núcleos.