Gaos may refer to:
- Geneva Amateur Operatic Society, a society based in Geneva
- Gyaos (ギャオス, Gyaosu?), (pronounced Gao-ss) is the name of several daikaiju from Daiei's Gamera film series, introduced in their 1967 production Gamera vs. Gyaos and one of Gamera's most famous opponents.
- José Gaos (1900–1969), Spanish-born philosopher
- Lola Gaos (1921–1993), Spanish film, television and theatre actress
- Vicente Gaos (1919–1980), Spanish poet and essayist