Look up Rathmann in Wiktionary, the free dictionary.
Rathmann is a surname. Notable people with the surname include:
- Dick Rathmann (1924–2000), American racecar driver
- George Rathmann (1927–2012), American chemist, biologist, pioneer in biotechnology and corporate executive
- Jim Rathmann (born1979), an American investigator, television personality, Army veteran, and former law enforcement officer, United States Secret Service agent, and college football player.
- Jim Rathmann (1928–2011), born Royal Richard Rathmann, American racecar driver who won the Indianapolis 500 in 1960
- Oswald Rathmann (born 1891), German road racing cyclist who competed in the 1912 Summer Olympics
- Peggy Rathmann (born 1953), American illustrator and writer of children's picture books