Aideen Gavin (born 1922) was a Brooklyn, New York City prostitute. In December 1945, Tattaglia crime family caporegime Tony Bianchi made time with her at the St. Sebastian Hotel, and Corleone crime family enforcer Aldo Trapani strangled Bianchi as he met with Gavin at a room. Trapani then threatened Gavin, forcing her to remain silent about the entire murder.