Steve "Kid" Sullivan (May 21, 1897 – September 6, 1979) was an American boxer who took the World Jr. Lightweight Title against Johnny Dundee on June 20, 1924, at the Henderson Bowl in Brooklyn, New York, in a ten-round points decision.

[2] Taking some time to gain prominence, he won a ten-round newspaper decision against well rated Jewish New York boxer Frankie Callahan at the Broadway arena in Brooklyn on January 22, 1916.

[1][3] Sullivan fought Vincent "Pepper" Martin for the first time on April 1, 1916, at the Broadway Sports Club in Brooklyn, winning in a fourth-round knockout.

[1] He fought the highly rated Sammy Sieger on January 22, 1923, at the Broadway Arena in Brooklyn, New York, losing in a twelve-round points decision.

[1] Sullivan took the World Jr. Lightweight Title against reigning champion Johnny Dundee on June 20, 1924, at the Henderson Bowl in Brooklyn, New York, in a ten-round points decision.

In a World Jr. Lightweight rematch on April Fools' Day in 1925, he lost a Unanimous Decision to his frequent rival Mike Ballerino at the Armory in Philadelphia, Pennsylvania in a bout that went the full ten rounds.

[1] On February 1, 1926, Sullivan won an easy decision over George Balduc in a slow ten round bout at the Broadway arena in Brooklyn, New York.

The Oakland Tribune wrote Morgan dealt Sullivan one of the worst beatings a battler ever received in an Eastern Ring" [13] The Wilkes-Barre Evening News, wrote "Tod Morgan... was not in the slightest danger of losing world's junior lightweight championship while fighting Steve Kid Sullivan at Ebbets Field last night".