Ken Overlin (August 15, 1910 – July 24, 1969), was an American-born middleweight boxer who fought professionally from 1931 to 1944, compiling a record of 131 wins (23 by knockout), 18 losses, and 9 draws.

While at Decatur Senior High, he worked as a bellhop, then joined the Navy in 1927, and soon began boxing, having many of his early bouts in cities where his ship the U.S.S.

[4] In an impressive but close win, he defeated middleweight contender and future champion Fred Apostoli in New York City's Hippodrome in a ten round mixed decision on January 27, 1937.

[2] Overlin lost to former World Middleweight champion Teddy Yarosz on March 27, 1939 in a ten round points decision in Houston, breaking an eleven match winning streak that included a single loss to Eric Seelig.

The young challenger to the title took significant punishment in the fifth and sixth rounds, and in the seventh, Ceferino landed a near knockout punch to his right ear.

[6][2] Overlin successfully defended his title twice against Steve Belloise, before losing it to Billy Soose on May 9, 1941 in a fifteen round Unanimous Decision before 11,676 fans at New York's Madison Square Garden.

[9] Before a crowd of 8,000, Overlin defeated former NBA Middleweight champion Al Hostak on November 21, 1941 in a ten round unanimous decision at Madison Square Garden.

[10] His win over Charles came in a ten round unanimous decision on June 9, 1941, in Cincinnati, only one month after his loss of the World middleweight title.

[11][2] Overlin drew with Fred Apostoli on June 26, 1942 in a close ten round draw before 7,000 fans at Norfolk's Naval base.

[12] Interrupting his boxing career, Overlin rejoined the Navy in 1942 to serve during WWII, then in 1944, after completing his wartime service, he fought four additional fights.