Chommo is a region in EarthBound. It is home to the Scaraba, Dalaam,Deep Darkness,Tenda Village, and Lost Underworld regions, and is Poo's home region. Chommo is only mentioned by name in the instruction booklet for the Japanese version of EarthBound, Mother 2. By its appearance in the EarthBound Player's Guide, the region appears to be based on Africa and Asia.
The name Chommo (チョンモ), along with Dalaam (Ramma, ランマ), is a reference to Mt. Everest, which is frequently referred by its Tibetan name Chomolungma (チョモランマ) in Japanese.