Lawrence Gene Fullmer (July 21, 1931 – April 27, 2015) was an American professional boxer and World Middleweight champion.

His manager during many years of his career was his mentor, Marv Jenson, who encouraged many youth in West Jordan, Utah, to enter boxing as amateurs.

Fullmer won the world middleweight championship on January 2, 1957, when he upset the legendary Sugar Ray Robinson by soundly winning a unanimous 15-round decision.

Meanwhile, Fullmer fought and turned back the challenges of many top contenders, such as Basilio, Ellsworth "Spider" Webb, Florentino Fernández, and welterweight champion Benny "Kid" Paret.

Fullmer graduated from Jordan High School and worked at Kennecott Copper Mine for several years, he also served in the Korean War.

His fight with Dick Tiger appears prominently in the music video for the Iggy Pop song 'American Valhalla'.

On April 27, 2015, five days after younger brother Jay's death, Gene died at the age of 83 in his home surrounded by friends and family.