Ernest Cutler Price (February 2, 1891 – August 7, 1942) better known as Jack Dillon, was an American boxer who held the Light Heavyweight Championship of the World.

Dillon was often referred to as "Jack the Giant Killer" for his ability to handle the most dangerous heavyweights of his era.

Ring Magazine founder Nat Fleischer ranked Dillon as the #3 Light Heavyweight of all time, while boxing promoter Charley Rose placed him at #2.

[4] With mixed results, Dillon had met Levinsky twice in his earlier career in October 1911 in Philadelphia, and April 1913 in Rochester.

Between 1910 and 1918, Dillon fought the great middleweight champion George Chip twelve times, often beating him in newspaper decisions.

On independence Day in 1918, Dillon and McCoy fought a close fight declared a draw in Charleston, South Carolina.

[4] Dillon opened strongly but weakened in the final rounds when Levinsky landed blows to his face, jaw, and body.