List of highways numbered 403
# List of highways numbered 403

The following highways are numbered 403:

## Canada

* Manitoba Provincial Road 403
* Newfoundland and Labrador Route 403
* Highway 403 (Ontario)

## Costa Rica

* National Route 403

## Croatia

* D403 road

## Hungary

* Main road 403 (Hungary)

## Japan

* Japan National Route 403

## Thailand

* Thailand Route 403

## United States

* Georgia State Route 403 (unsigned designation for Interstate 85)
* Indiana State Road 403 (former)
* New York:
   * New York State Route 403
   * County Route 403 (Albany County, New York)
   * County Route 403 (Erie County, New York)
* North Carolina Highway 403
* Pennsylvania Route 403
* Puerto Rico Highway 403
* Rhode Island Route 403
* South Carolina Highway 403
* Virginia State Route 403
* Washington State Route 403

| Preceded by 402 | Lists of highways 403 | Succeeded by 404 |
| - | - | - |
