Abaya is a surname. Notable people with the surname include:
César Abaya (born 1984), Chadian professional football player Craig Abaya (born 1979), American recording artist, filmmaker, photographer, and university program director (Uh-béy-uh) Francis Gerald Abaya (born 1975), Filipino politician Jun Abaya (born 1966), Filipino politician Marc Abaya (born 1979), Filipino musician and television host Marilou Diaz-Abaya (1955–2012), Filipino film director