Roy James Gaines (August 12, 1937 – August 11, 2021) was an American Texas blues and electric blues guitarist, singer and songwriter. He wrote and recorded the song “A Hell of a Night”, which was first issued on his 1982 album Gainelining. He was the younger brother of the blues musician Grady Gaines.

Gaines was born in Waskom, Texas on August 12, 1937, and relocated with his family to Houston when he was six years old. Originally a piano devotee, Gaines moved to playing the guitar in his adolescence. In his teens he was acquainted with another budding guitarist, Johnny Copeland. By the age of 14 he had performed onstage backing his hero, T-Bone Walker, and played in Houston nightclubs. He later moved to Los Angeles, California.