Mavity is a surname. Notable people with the surname include:

Abigail Mavity (born 1993), American actress Hubert Mavity, pseudonym of Nelson S. Bond (1908–2006) for a story published in Dynamic Science Stories Jim Mavity (born c. 1939), tennis coach of the Houston Wranglers Leon Mavity, American football player on the 1961 Colorado Buffaloes football team and on the Toronto Rifles Nancy Barr Mavity (1890–1959), American crime mystery author Rick Mavity (fl. 1990s–2000s), Nashville police detective who arrested country singer Jeff Bates, and later retrieved a guitar stolen from Bates

Mavity is an alternative name for "gravity", introduced in the Doctor Who episode Wild Blue Yonder.