Spalding Rockwell Gray (June 5, 1941 – ca. January 10, 2004) was an American actor, playwright, screenwriter, performance artist, and monologist. He was primarily known for his "trenchant, personal narratives delivered on sparse, unadorned sets with a dry, WASP, quiet mania."Willis, John, and Hodges, Ben. Theatre World: Volume 60, Hal Leonard Corp. (2006) Gray achieved celebrity for writing and acting in the play Swimming to Cambodia, adapted into a film in 1987.

He began his career in regional theatre, moved to New York in 1967 and three years later joined Richard Schechner's experimental troupe, the Performance Group. He co-founded the Wooster Group ensemble in 1975. He died in New York City of an apparent suicide.