Bill Vinovich is an American football official in the National Football League (NFL) from 2001 to 2006 and 2012, as well as a college basketball official. Vinovich began his career in the NFL as a side judge on the officiating crew headed by referees Dick Hantak (2001) and Ed Hochuli (2002-2003) before being promoted to referee for the start of the 2004 NFL season after former referee Ron Blum returned to his original position of line judge. Outside of officiating, Vinovich works as a CPA. In the NFL, he wears uniform number 52.