List of highways numbered 173

The following highways are numbered 173:

Canada

 * Prince Edward Island Route 173
 * qc173.svg Quebec Route 173

India

 * NH173-IN.svg National Highway 173 (India)

Ireland

 * IRL_R173.svg R173 road

Japan

 * Japanese National Route Sign 0173.svg Japan National Route 173

Korea, South

 * Iksan–Pyeongtaek Expressway Branch

Philippines

 * N173 (Philippines).svg National Route 173 (Philippines)

United States

 * Alabama 173.svg Alabama State Route 173
 * Arizona 173.svg Arizona State Route 173 (former)
 * California 173.svg California State Route 173
 * Connecticut Highway 173.svg Connecticut Route 173
 * Florida 173.svg Florida State Road 173
 * Georgia 173.svg Georgia State Route 173
 * Illinois 173.svg Illinois Route 173
 * Iowa 173.svg Iowa Highway 173
 * K-173.svg K-173 (Kansas highway)
 * Elongated circle 173.svg Kentucky Route 173
 * Louisiana 173.svg Louisiana Highway 173
 * MA Route 173.svg Maine State Route 173
 * MD Route 173.svg Maryland Route 173
 * M-173.svg M-173 (Michigan highway) (former)
 * MO-173.svg Missouri Route 173
 * Ellipse sign 173.svg New Jersey Route 173
 * New Mexico 173.svg New Mexico State Road 173
 * NY-173.svg New York State Route 173
 * OH-173.svg Ohio State Route 173
 * OR 173.svg Oregon Route 173
 * PA-173.svg Pennsylvania Route 173
 * South Carolina 173.svg South Carolina Highway 173
 * Secondary Tennessee 173.svg Tennessee State Route 173
 * Texas 173.svg Texas State Highway 173
 * Texas Loop 173.svg Texas State Highway Loop 173
 * Texas FM 173.svg Farm to Market Road 173 (Texas)
 * Utah SR 173.svg Utah State Route 173
 * Virginia 173.svg Virginia State Route 173
 * WA-173.svg Washington State Route 173
 * WIS 173.svg Wisconsin Highway 173
 * WY-173.svg Wyoming Highway 173
 * Territories:
 * PR secondary 173.svg Puerto Rico Highway 173