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Frank Klaus

American boxer (1887–1948)

Born
30 December 1887, Pittsburgh
Died
8 February 1948, Pittsburgh
Citizenship
United States
Sport
boxing
Discipline
middleweight
Occupation
boxer
Height
171 cm (5 ft 7 in)
Recorded fight record
51 wins, 4 losses, 2 draws

Francis Klaus (December 30, 1887 – February 8, 1948) was an American boxer from 1904 to 1918. Known as the Braddock Bearcat, Klaus claimed the vacant World Middleweight Championship in 1913 and was elected to the Ring Boxing Hall of Fame in 1974.

Gifted with a strong punch, he lost exceptionally few fights in his nine-year career, and was knocked out only once. Nat Fleischer ranked Klaus sixth as the All-Time Middleweight. His manager was George Engel.

Awards and honours

External links

Facts from Wikidata Q640729 (CC0); quoted introduction from English Wikipedia (CC BY-SA 4.0). Data retrieved 2026-10-22.

Data: Wikidata (CC0 1.0); Wikipedia (English) (CC BY-SA 4.0). Retrieved 2026-10-22.