Gasa may refer to:
- Gasa District, Bhutan and the district capital town of Gasa, Bhutan
- Gasa (barangay) Medina, Misamis Oriental, Philippines
- Gasa (barangay) Lakewood, Zamboanga del Sur, Philippines
- Gasa (poetry), a form of Korean classical poetry
- Gasa (hat)
- Biuki Gasa, Solomon Islander one of two scouts who found the crew of John F. Kennedy's Motor Torpedo Boat PT-109
- Xishuangbanna Gasa Airport, airport serving Jinghong, Yunnan, China
- Gasa, Jinghong, town in Jinghong, Yunnan, China, and the location of the Xishuangbanna Gasa Airport