Gillian Barber (born 22 February 1958) is an English-born Canadian actress.

She was born in Coventry, West Midlands, England, and raised in British Columbia, Canada.

She studied at the Guildhall School of Music and Drama in London, and BFA program in the University of Victoria.

She appeared in films such as The Stepfather, Needful Things, and Jumanji; in TV series such as The X-Files and Stargate SG-1; and in TV animation Sabrina: The Animated Series and Adventures from the Book of Virtues as voice actress.

She teaches at Capilano University, British Columbia, and created the Musical Theatre program in 2007.