Ian Harnarine is a Canadian film director and screenwriter. He is best known for his 2011 short film Doubles with Slight Pepper, which won the Genie Award for Best Live Action Short Drama at the 32nd Genie Awards in 2012.

Born and raised in Toronto to immigrant parents from Trinidad and Tobago, Harnarine studied physics and astronomy at York University and the University of Illinois before pursuing a film degree at New York University. While studying at NYU, he took classes under Spike Lee, who was credited as the executive producer on Doubles with Slight Pepper. The film also won the award for Best Canadian Short Film at the 2011 Toronto International Film Festival.

Harnarine later produced a feature film version of Doubles with Slight Pepper, which has been announced as part of the schedule for the 2023 Atlantic International Film Festival.