Steinhardt (surname)
Steinhardt is a surname of German origin. The name refers to:
- Arnold Steinhardt, American concert violinist
- Jacob Steinhardt, German painter and woodcut artist
- Joseph Steinhardt, German rabbi and Talmud scholar
- Laurence Steinhardt, American diplomat; U.S. ambassador to several countries, including the USSR
- Michael Steinhardt, American financial manager and philanthropist
- Nicolae Steinhardt, Romanian writer, Orthodox Christian hermit and father confessor
- Paul Steinhardt, American theoretical physicist and professor
- Robby Steinhardt, American rock musician and singer