Namesakes
John Neumann
(m) 1811-1860 
Saints
Paul Neumann
(m) 1875-1932
Olympic Medalists 1896 swimming - 400 m freestyle (gold)
Otto Neumann
(m) 1902-1990
Olympic Medalists 1928 4x400 m relay (silver)
John von Neumann
(a.k.a. Neumann) (m) 1903-1957
Notable Philosophers and Thinkers
Meta Elste
(a.k.a. Neumann) (f) 1919-2010
Olympic Medalists 1948 artistic gymnastics (bronze)