Johann Gerhard
Johann Gerhard is the name of the following people:
- Johann Gerhard (theologian) (1582–1637), German theologian
- Johann Gerhard (bailiff) (1781–1858), Baden bailiff
- Johann Gerhard (physician) (1599–1657), German doctor and university lecturer
- Johann Carl Ludewig Gerhard (1768–1835), German mining captain
- Johann Christian Adam Gerhard (1780–1837), German organ builder
- Johann Conrad Gerhard (1720–1808), German-Russian hydraulic engineer
- Johann Ernst Gerhard the Elder (1621–1668), German theologian
- Johann Ernst Gerhard the Younger (1662–1707), German theologian
