List of highways numbered 511

The following highways are numbered 511:

Canada

* Alberta Highway 511
* Ontario Highway 511 (former)

United States

* U.S. Route 511 (former)
* Florida State Road 511 (former)
* County Road 511 (Brevard County, Florida)
* Nevada State Route 511 (former)
* County Route 511 (New Jersey)
* Ohio State Route 511
* Farm to Market Road 511
;Territories:
* Puerto Rico Highway 511

{{Road index, 511