Michael J. Gibbons (July 20, 1887 – August 31, 1956) was an American boxer from 1908 to 1922.

The brother of heavyweight Tommy Gibbons, he claimed Middleweight Champion of the World status in 1909 following Stanley Ketchel's murder.

Although he never won the title, Gibbons is regarded as one of the all-time best welter and middleweight boxers by historians.

Statistical boxing website BoxRec lists Gibbons as the #18 ranked middleweight of all time, while The Ring Magazine founder Nat Fleischer placed him at #9.

Following his boxing career he entered business in his native St. Paul, and became a member of the Minnesota Athletic Commission.