| Maritsa 3 Power Plant | |
| Country: | Bulgaria |
| Location: | Dimitrovgrad |
| Coordinates: | 42.0542°N 25.6264°W |
| Status: | O |
| Ps Units Operational: | 2 |
| Ps Electrical Capacity: | 120 MW |
| Commissioned: | 1951 |
Maritsa 3 Thermal Power Plant (Bulgarian: ТЕЦ Марица 3) is a power plant situated near the city of Dimitrovgrad, southern Bulgaria. It has an installed capacity of 120 MW.