Ahsa
Ahsa or AHSA may refer to:
- Al-Ahsa Oasis, an oasis region in eastern Arabia
 - Al-Ahsa Governorate, a governorate in Saudi Arabia
 - African Heritage Studies Association, a splinter group of the African Studies Association
 - American Horror Story: Asylum, an American television miniseries
 - American Horse Shows Association
 - American Hunters and Shooters Association
 
, the Gothic letter a; see Gothic alphabet, Ansuz rune