Theodor Stein
Theodor Stein is the name of the following people:
- Theodor Stein (musician) (1819–1893), German pianist, composer and music teacher
- Theodor Stein (engineer) (1895–1974), Swiss engineer and entrepreneur
- Theodor August Stein (1802–1876), German architect and construction officer
- Theodor Friedrich Stein (around 1730–1788), German painter