Acha

Acha or ACHA may refer to:


 * Acha, Coll, Scottish village
 * Acha (doll), a character in Namco's 1986 arcade game, Toy Pop
 * Acha (name), list of people with the name
 * Acha Mountain Fortress, an earthen fortress
 * General Acha, town in La Pampa Province, Argentina
 * American College Health Association
 * American Collegiate Hockey Association
 * A name for Digitaria exilis, a grass, a species of fonio