Jack McAuliffe (March 24, 1866 – November 5, 1937) was an Irish boxer who fought mostly out of Williamsburg, Brooklyn.

Nicknamed "The Napoleon of the Ring," McAuliffe is one of only fifteen world boxing champions to retire without a loss.

He turned professional soon after, fighting Jem Carney 78 rounds to a draw at Revere Beach, Massachusetts.

In 1897 he successfully defended his title against Billy Myer in a highly publicized match at the Olympic Club, New Orleans .

McAuliffe and Rowe moved back to Bangor, Maine, in 1894, where he undertook preliminary training for a fight later that year at the Seaside Athletic Club on Coney Island.