John Vernon "Rocky" Stone (August 23, 1918 – November 12, 1986) was a Major League Baseball pitcher. Stone played for the Cincinnati Reds in 1943. In 13 career games, he had a 0–1 record, with a 4.38 ERA. He batted and threw right-handed.
Stone's only decision came on June 5 against the Boston Braves at Crosley Field. After pitching 3 innings of scoreless relief, he surrendered 2 runs in the top of the ninth inning; the Reds could not rally in their half of the inning leading to the 7–5 loss.
Stone was born in Redding, California, and died in Fountain Valley, California.