| Monte Terza Grande | |
| Elevation M: | 2586 |
| Prominence M: | 1277 |
| Prominence Ref: | [1] |
| Range: | Carnic Alps |
| Location: | Veneto, Italy |
| Map: | Alps |
| Coordinates: | 46.5333°N 49°W |
| First Ascent: | 1820 |
Monte Terza Grande (2,586 m) is a mountain of the Carnic Alps in Belluno, Veneto in north-eastern Italy. It is the highest mountain of the Southern Carnics and is part of a small Dolomitic group known as the "Dolomiti Pesarine". It resembles a pyramid from the north and south and a rocky massif from the east or west, and boasts a northwest face that is one kilometre high.[2] It was first climbed in 1820.