Leslie "Les" Blair (born 23 October 1941, Manchester, England, UK) is an English television, film and theatre director.
Blair is known for directing the controversial 1978 miniseries Law and Order, which had four separate crime stories told from the perspective of the Detective, the Villain, the Brief and the Prisoner. His work on Law and Order brought him to the attention of Paul Knight, who hired him to direct the London's Burning television movie in 1986. He also directed the Christmas episode Ding Dong Merrily. He currently teaches at the London Film School.