| Country: | TTO |
| Type: | H |
| Route: | Diego Martin |
| Length Km: | 5 |
| Direction A: | North |
| Direction B: | South |
| Terminus A: | Cocorite |
| Cities: | Port of Spain, Diego Martin |
| Terminus B: | Diamond Vale |
The Diego Martin Highway is a highway in Trinidad and Tobago. It runs west from Cocorite to Diamond Vale. The highway meets the Audrey Jeffers Highway in Cocorite and runs north–south to Wendy Fitzwillliam Boulevard in Diamond Vale.