title: Fritz Klein (disambiguation)
text: # Fritz Klein (disambiguation)
  
  Fritz Klein (1888–1945) was a German Nazi physician convicted and executed in 1945 following Nuremberg "Doctors Trial."
  
  Fritz Klein may also refer to:
  
  * Fritz Klein (sex researcher) (1932–2006), Austrian physician and bisexual activist who resided in the US
  * Fritz Heinrich Klein (1892–1977), Austrian composer and pupil of Alban Berg
  * Fritz Klein (actor) (born 1948), American actor known for portraying Abraham Lincoln
  * Fritz Klein (historian) (1924–2011), German historian and left-wing Social Democrat
  