Billy Sullivan is an Australian former rugby league player and coach.
A front-rower, Sullivan started his career with home town club Temora and played in three Group 9 premierships.
He competed for the Queanbeyan Blues from 1964 to 1967 and served as captain-coach in his first season, then played under Don Furner thereafter.
As captain, Sullivan lead the Blues to grand final wins in both 1965 and 1967.
He took charge of the Raiders reserves and stood in as first-grade coach for a match against Canterbury in 1982, when Furner was absent on a scouting trip.