| Native Name: | Петар Теодоровић |
| Native Name Lang: | srp |
| Birth Name: | Petar Teodorović |
| Other Name: | Petar Dobrnjac |
| Birth Place: | Dobrnje, Sanjak of Smederevo, Ottoman Empire |
| Death Date: | (aged 60) |
| Allegiance: | Revolutionary Serbia |
| Rank: | Bimbaša Voivode |
| Battles: | Battle of Deligrad, Battle of Ivankovac |
Petar Teodorović (Serbian: Петар Теодоровић; 1771–1831),[1] known as Petar Dobrnjac (Петар Добрњац) was a Serbian Vojvoda in the First Serbian Uprising. He was born in the Požarevac nahija, in the village of Dobrnje, Petrovac.[2] In his youth, he was a hajduk, and later a trader in farm animals. He had a brother Stevan Dobrnjac who with Marko Todorović launched a short-lived revolt against Miloš Obrenović in 1821.[3]
In 1804, the year of the First Serbian Uprising, he was a Buljubaša, the commander of a četa (company), under Milenko Stojković.[4] In 1805 he took part in the Battle of Ivankovac against Hafuz Pasha.[5] On his initiative Serbs came to the idea to fortify themself in the battle which proved crucial for Serbian victory.[6] [7] Afterwards, the Governing Council-Soviet (Правитељствујушчи совјет) awarded him the rank of Bimbaša (a commander of 1000 men) and Vojvoda.
After the Battle of Deligrad in 1806 against Ibrahim Bushati, pasha of Scutari, he became one of the most important men in Serbia.