List of highways numbered 340
# List of highways numbered 340

The following highways are numbered 340:

## Canada

* Manitoba Provincial Road 340
* New Brunswick Route 340
* Newfoundland and Labrador Route 340
* Nova Scotia Route 340
* Prince Edward Island Route 340
* Quebec Route 340
* Saskatchewan Highway 340

## India

* National Highway 340 (India)

## Japan

* Japan National Route 340

## Norway

* Fv340

## United States

* U.S. Route 340
* Arkansas Highway 340
* Colorado State Highway 340
* Georgia State Route 340 (former)
* Hawaii Route 340
* Indiana State Road 340
* Missouri Route 340
* Nevada State Route 340
* New York State Route 340
* Ohio State Route 340
* Pennsylvania Route 340
* Texas:
   * Texas State Highway 340 (former)
   * Texas State Highway Loop 340
* Wyoming Highway 340

| Preceded by 339 | Lists of highways 340 | Succeeded by 341 |
| - | - | - |
