List of highways numbered 510
# List of highways numbered 510

The following highways are numbered 510:

## Canada

* Alberta Highway 510
* New Brunswick Route 510
* Newfoundland and Labrador Route 510
* Ontario Highway 510

## Costa Rica

* National Route 510

## Ireland

* R510 regional road

## United States

* Interstate 510
   * Interstate 510 (Arizona) (cancelled proposal)
* Florida State Road 510
* Maryland Route 510
* County Route 510 (New Jersey)
* Ohio State Route 510
* Washington State Route 510

### Territories

* Puerto Rico Highway 510

| Preceded by 509 | Lists of highways 510 | Succeeded by 511 |
| - | - | - |
