Herr is a German surname. Notable people with the surname include:
- Aaron Herr (born 1981), American baseball player
- Alexander Herr (born 1978), German ski jumper
- Anita Herr (born 1987), Hungarian handball player
- Beth Herr (born 1964), American tennis player
- Claudius Herr (1775 – 1838), Austrian painter
- Dominique Herr (born 1965), Swiss footballer
- Howard Herr (born 1962), South African tennis player
- Hugh Herr (born 1964), American rock climber, engineer, and biophysicist
- Jim Herr (1924 – 2012), American businessman
- John Knowles Herr (1878 – 1955), American general officer
- Lois Herr (born 1941), American politician
- Matt Herr (born 1976), American ice hockey player
- Michael Herr (1940 – 2016), American writer
- Michel Herr (born 1949), Belgian musician
- Orsolya Herr (born 1984), Hungarian handball player
- Spencer Herr (born 1974), American artist
- Tom Herr (born 1956), American baseball player
- Traugott Herr (1890 – 1976), German general