Namesakes
Roelof Klein
(m) 1877-1960 
Olympic Medalists 1900 rowing (bronze/gold)
Chuck Klein
(m) 1904-1958
Hall-of-Famers 1980 (baseball)
Most Valuable Players 1932 baseball
Lawrence Klein
(m) 1920-2013
Nobel Prize Winners 1980 (economics)
Herbert Klein
(m) 1923-2001
Olympic Medalists 1952 swimming - 200 m breaststroke (bronze)
Yves Klein
(m) 1928-1962
Notable Artists
Helga Klein
(f) 1931-2021
Olympic Medalists 1952 4x100 m relay (silver)
Hans-Joachim Klein
(m) 1942-
Olympic Medalists 1964 swimming - 100 m freestyle; swimming - 4x100 m freestyle relay; swimming - 4x100 m medley relay; swimming - 4x200 m freestyle relay (bronze/silver)
Robert Klein
(m) 1942-
Notable Actors and Entertainers (actor/comedian)
Calvin Klein
(m) 1942-
Notable Artists
Barbi Benton
(a.k.a. Klein) (f) 1950-
Notable Actors and Entertainers (actor/model)
Dani Klein
(f) 1953-
Notable Musicians
Harry Klein
(m)
Fictional Characters from Television 1969; 1974 Der Kommissar; Derrick
Naomi Klein
(f) 1970-
Notable Activists and Revolutionaries
Notable Writers
Chris Klein
(m) 1979-
Notable Actors and Entertainers (actor)
Noeki Klein
(f) 1983-
Olympic Medalists 2008 water polo (gold)
Sascha Klein
(m) 1985-
Olympic Medalists 2008 diving (silver)
Florian Klein
(m) 1986-
Notable Athletes (soccer)