WZAA may refer to:

• WZAA-LP, a low-power radio station (106.9 FM) licensed to serve Jeffersonville, Ohio, United States
• WBQH, a radio station (1050 AM) licensed to serve Silver Spring, Maryland, United States, which held the call sign WZAA from 2009 to 2010
• WQBU-FM, a radio station (92.7 FM) licensed to serve Garden City, New York, United States, which held the call sign WZAA from 2004 to 2007

• Cos⁻¹ (disambiguation)
• COS−1
• COS−1 (disambiguation)
• Cos−1 (disambiguation)
• COT-1
• COT-1 (disambiguation)
• Cot-1 (disambiguation)
• Cotabato (historical province)
• Cotabato Light And Power Company
• Cotabato province (1914-1973)
• Cotabato Province (1914-1973)
• Cotabato Province (1914–1973)
• Cotabato province (1914–1973)
• Cotabato provincial symbols
• Cotabato Regional and Medical Center
• Cotabato Regional Medical Center
• Cotachena fulvomarginalis
• Cota, Colombia
• Cotaena magnifica
• Cotaena plenella
• Cotaena tchalla
• Cota (genus)
• Cotaggeparken
• CotaiArena
• Cotalango Leon