List of highways numbered 100
# List of highways numbered 100

Several highways are numbered 100:

## Australia

* Great Ocean Road, Victoria
* Surf Coast Highway, Victoria
* Flinders Highway, South Australia
* Lincoln Highway, South Australia

## Canada

* Alberta Highway 100 (Sherwood Park Freeway) (unsigned)
* Manitoba Highway 100 (Perimeter Highway)
* New Brunswick Route 100
* Newfoundland and Labrador Route 100
* Niagara Regional Road 100, Ontario
* former Highway 100 (Ontario)

## Costa Rica

* National Route 100

## Croatia

* D100 road

## Germany

* Bundesautobahn 100, the Berliner Stadtring (Berlin City Ring Road)
* Bundesstraße 100

## India

* National Highway 100 (former, now National Highway 522 (India))

## Korea, South

* Seoul Ring Expressway

## Malaysia

* A100 road (Malaysia), a road in Perak
* Federal Route 100 (Lumut Bypass), a highway bypass in Manjung district, Perak

## Mexico

* Sonora State Highway 100

## Netherlands

* Stadsroute 100 (Amsterdam), the city center ring road

## Philippines

* N100 highway (Philippines)

## Poland

* Voivodeship road 100 (Poland) in the Pomeranian Voivodeship

## Serbia

* State Road 100 (Serbia), an IIA-class road connecting Horgoš with Batajnica.

## Turkey

* D.100State road D.100 (Turkey), a west–east state road running from the Bulgarian border to Iranian border.

## United Kingdom

* A100, part of the London Inner Ring Road

## United States

* Alabama State Route 100
* Arkansas Highway 100
* California State Route 100
* Colorado State Highway 100
* Connecticut Route 100
* Delaware Route 100
* Florida State Road 100
* Georgia State Route 100
* Illinois Route 100
* Indiana State Road 100 (former)
* Iowa Highway 100
* K-100 (Kansas highway) (former)
* Kentucky Route 100
* Louisiana Highway 100
* Maine State Route 100
* Maryland Route 100
   * Maryland Route 100 (1930s-1950s)
   * Maryland Route 100 (former)
   * Maryland Route 100J
   * Maryland Route 100L
   * Maryland Route 100M
   * Maryland Route 100N
   * Maryland Route 100O
   * Maryland Route 100P
   * Maryland Route 100Q
   * Maryland Route 100R
   * Maryland Route 100S
   * Maryland Route 100T
   * Maryland Route 100U
   * Maryland Route 100V
   * Maryland Route 100W
   * Maryland Route 100X
* M-100 (Michigan highway)
* Minnesota State Highway 100
* Missouri Route 100
* Nebraska Highway 100 (former)
* New Jersey Route 100 (former)
   * County Route 100 (Bergen County, New Jersey)
* New York State Route 100
   * County Route 100 (Cortland County, New York)
   * County Route 100 (Dutchess County, New York)
   * County Route 100 (Rockland County, New York)
   * County Route 100 (Suffolk County, New York)
   * County Route 100 (Wayne County, New York)
* North Carolina Highway 100
* Ohio State Route 100
* Oklahoma State Highway 100
* Pennsylvania Route 100
* Rhode Island Route 100
* South Dakota Highway 100 (proposed)
* Tennessee State Route 100
* Texas State Highway 100
   * Texas State Highway Spur 100
   * Farm to Market Road 100
   * Texas Park Road 100
* Utah State Route 100
* Vermont Route 100
* Virginia State Route 100
* Washington State Route 100
* West Virginia Route 100
* Wisconsin Highway 100

### Territories

* Puerto Rico Highway 100
