WAAA

WAAA may refer to:

• Women's Amateur Athletic Association, former governing body of athletics for women in England
• Wiltshire Air Ambulance Appeal, a charity that raises money for the Wiltshire Air Ambulance
• We Are America Alliance, a national alliance of immigrant rights organizations and allies in the United States
• WAAA-LD, a low-power television station (channel 16, virtual 49) licensed to serve Valparaiso, Indiana, United States; see List of television stations in Indiana
• WTOB (AM), a radio station (980 AM) licensed to Winston-Salem, North Carolina, United States, which used the call sign WAAA until June 2006
• WKZL, a radio station (107.5 FM) licensed to Winston-Salem, North Carolina, which once used the call sign WAAA-FM
• the ICAO code for Sultan Hasanuddin International Airport
• Lipid IVA 3-deoxy-D-manno-octulosonic acid transferase, an enzyme
• (KDO)2-lipid IVA (2-8) 3-deoxy-D-manno-octulosonic acid transferase
• (KDO)3-lipid IVA (2-4) 3-deoxy-D-manno-octulosonic acid transferase