Gerhardt is a masculine name of German origin. It can refer to any of the following:
As a first name
- Gerhardt, a Dutch musician
- Gerhardt Boldt, German soldier and writer
- Gerhardt Laves, American linguist
- Gerhardt Friedrich Müller, German historian and ethnologist
- Gerhardt Neef, German footballer
As a surname
- Alban Gerhardt (born 1969), German cellist
- Carl Jakob Adolf Christian Gerhardt (1833—1902), German internist
- Charles Gerhardt (1927—1999), U.S. conductor
- Charles Frédéric Gerhardt (1816—1856), French chemist
- Charles H. Gerhardt (1895—1976), U.S. general
- Dieter Gerhardt, Commodore in the South African Navy and Soviet spy
- Elena Gerhardt (1883—1961), German singer
- Hans-Jürgen Gerhardt (born 1954), East German bobsledder
- Ida Gerhardt (1905—1997), Dutch poet
- Jason Gerhardt, U.S. actor
- Jeff Gerhardt, U.S. teacher, inventor, and entrepreneur
- Joe Gerhardt (1855—1922), 19th century Major League Baseball player
- Nyema Gerhardt (born 1985), Swiss footballer
- Paul Gerhardt (1607—1676), German hymn writer
- Robert Gerhardt (1903—1989), U.S. rower
- Sue Gerhardt, British psychoanalytic psychotherapist
- Tom Gerhardt, German actor and comedian
- Wolfgang Gerhardt (born 1943), German politician
Fictional characters
- Jennie Gerhardt, the eponymous heroine of the 1911 novel by Theodore Dreiser
- Mack Gerhardt
- Tiffy Gerhardt