| Country: | VNM |
| Type: | QL |
| Route: | 1D |
| Map Custom: | yes |
| Photo Notes: | National Route 1D near Sông Cầu |
| Length Km: | 33 |
| Direction A: | North |
| Terminus A: | in Quy Nhơn, Bình Định Province |
| Direction B: | South |
| Terminus B: | in Sông Cầu, Phú Yên Province |
National Route 1D (Vietnamese: Quốc lộ 1D (or abbrv. QL1D)|links=no) is a road in South Central Coast of Vietnam. It connects Route 1 (QL1) to Quy Nhơn and continues along the coast to Sông Cầu District in Phú Yên Province rejoining QL1A.
The total length of the route is 33 km.[1] The route runs along the coastal tourist area South of Quy Nhon to Sông Cầu.
Route 1D runs through the following places: