The Godfrey Funeral Home shared a photo of him.
Gillian served in several county and municipal positions from the early 60s until his run as mayor from 1986 to 1990.
He founded Gillian's Wonderland Pier at 6th Street and the Boardwalk in 1965, which his son announced is closing at the end of this season.
Roy Gillian was 94 years old.