| Ardashir Mirza | |
| Birth Date: | 1805/06 |
| Birth Place: | Tabriz, Iran |
| Death Date: | 1866 (aged 59–61) |
| Death Place: | Tehran, Iran |
| Dynasty: | Qajar |
| Father: | Abbas Mirza |
| Religion: | Twelver Shia Islam |
Ardashir Mirza Rokn ed-Dowleh (Persian: اردشیر میرزا رکن الدوله; 1805/06 – 1866) was a Qajar prince who held the governorship of several Iranian provinces during the reigns of Fath-Ali Shah Qajar, Mohammad Shah Qajar and Naser al-Din Shah Qajar . He was the ninth son of Abbas Mirza.