Christopher Joseph Isaak (born June 26, 1956) is an American singer, songwriter, guitarist and occasional actor. Noted for his reverb-laden rockabilly revivalist style and wide vocal range, he is popularly known for his breakthrough hit and signature song "Wicked Game"; as well as international hits such as "Blue Hotel", "Baby Did a Bad Bad Thing", and "Somebody's Crying".

With a career spanning four decades, Isaak has released a total of 13 studio albums, toured extensively with his band Silvertone, and received numerous award nominations. His sound and image are often compared to those of Roy Orbison, Elvis Presley, Ricky Nelson, and Duane Eddy.

Isaak is closely associated with film director David Lynch, who has used his music in numerous films. As an actor, he played supporting roles and bit parts in films such as Married to the Mob, The Silence of the Lambs, Little Buddha, That Thing You Do! and Lynch's Twin Peaks: Fire Walk with Me, and starred in two television series: the sitcom The Chris Isaak Show and the talk show The Chris Isaak Hour.