Karel Neffe (born 21 February 1985 in Prague) is a Czech rower.
He finished 5th in the men's coxless four at the 2008 Summer Olympics.
His father Karel Neffe was a crew member of the Czechoslovak boat which won the bronze medal in the 1972 coxed four event.
World Rowing Junior Championships – 2002 champion in JM 8
World Rowing Junior Championships – 2003 silver medalist in JM 4-
World Rowing U23 Championships – 2006 champion in JMB 4- (world-best time)
European Rowing Championships – 2007 champion in M4-