| Province: | NB |
| Type: | NB |
| Route: | 774 |
| Map Custom: | yes |
| Maint: | New Brunswick Department of Transportation |
| Length Km: | 14.9 |
| Length Ref: | [1] |
| Length Round: | 1 |
| Direction A: | North |
| Direction B: | South |
| Terminus A: | Lighthouse Road north of Head Harbour |
| Terminus B: | on Franklin Delano Roosevelt Bridge in Lubec |
| Previous Type: | NB |
| Previous Route: | 772 |
| Next Type: | NB |
| Next Route: | 776 |
Route 774 is a 14.9km (09.3miles) long mostly north–south secondary highway on Campobello Island in Charlotte County, New Brunswick, Canada.
The route's northern terminus is northeast of the community of Head Harbour near Head Harbour Island. The road travels southwest through Head Harbour, past Pollock Cove, and into Wilsons Beach. From here, the route passes several coves including Curry Cove, Otter Cove (near the village of Otter Cove), Clarks Cove and Conroy Cove. It passes the east bank of Harbour de Lute, turns east, and enters Welshpool on Friars Bay. The route then continues south past Herring Cove Provincial Park, Snug Cove, Roosevelt Campobello International Park, and finally Union Cove before ending at the Franklin Delano Roosevelt Bridge at the Canada–US border continuing on as Maine State Route 189.