Gacha can refer to:
- Gashapon, a kind of plastic eggshell toy that originated in Japan
- Gācha, an administrative district in Bangladesh
- Gacha Gacha, a Japanese manga by Hiroyuki Tamakoshi
- José Gonzalo Rodríguez Gacha, a Colombian drug lord and co-founder of the Medellín Cartel
- Gacha (Mongolian:ᠭᠠᠴᠠᠭᠠ Gaqaa, Chinese: 嘎查 gacha) is the smallest administrative unit in Inner Mongolia, same as a nomadic settlement or hamlet.