| Rudolf III, Margrave of Baden-Baden | |
| Noble Family: | House of Zähringen |
| Father: | Rudolf I, Margrave of Baden-Baden |
| Mother: | Kunigunde of Eberstein |
| Spouse: | Jutta of Strassberg |
| Death Date: | 1332 |
Rudolf III, Margrave of Baden-Baden (? – 2 February 1332) was a son of Margrave Rudolf I and his wife, Kunigunde of Eberstein. After his father died in 1288, he ruled the margraviate jointly with his brothers Hesso, Herman VII and Rudolf II.
Rudolf III was married to Jutta of Strassberg. This marriage remained childless.