List of highways numbered 155

Route 155 or Highway 155 may refer to:

Canada

 * PEI_Highway_155.svg Prince Edward Island Route 155 (Thompson Road)
 * qc155.svg Quebec Route 155
 * Saskatchewan Highway 155 (jct).svg Saskatchewan Highway 155
 * Winnipeg city route 155.svg Winnipeg Route 155

Costa Rica

 * CR RNS 155.svg National Route 155

Japan

 * Japanese National Route Sign 0155.svg Japan National Route 155

United States

 * I-155.svg Interstate 155
 * US 155 (1948).svg U.S. Route 155 (former proposal)
 * Alabama 155.svg Alabama State Route 155
 * Arkansas 155.svg Arkansas Highway 155
 * California 155.svg California State Route 155
 * Connecticut Highway 155.svg Connecticut Route 155
 * Florida 155.svg Florida State Road 155
 * Georgia 155.svg Georgia State Route 155
 * Illinois 155.svg Illinois Route 155
 * Elongated circle 155.svg Kentucky Route 155
 * Louisiana 155.svg Louisiana Highway 155
 * MA Route 155.svg Maine State Route 155
 * MD Route 155.svg Maryland Route 155
 * M-155.svg M-155 (Michigan highway)
 * NH Route 155.svg New Hampshire Route 155
 * NH Route 155A.svg New Hampshire Route 155A
 * Ellipse sign 155.svg New Jersey Route 155 (former)
 * NY-155.svg New York State Route 155
 * OH-155.svg Ohio State Route 155
 * PA-155.svg Pennsylvania Route 155
 * Tennessee 155.svg Tennessee State Route 155
 * Texas 155.svg Texas State Highway 155
 * Texas Loop 155.svg Texas State Highway Loop 155
 * Texas FM 155.svg Farm to Market Road 155 (Texas)
 * Utah SR 155.svg Utah State Route 155
 * Vermont 155.svg Vermont Route 155
 * Virginia 155.svg Virginia State Route 155
 * WA-155.svg Washington State Route 155
 * WIS 155.svg Wisconsin Highway 155
 * Territories:
 * PR secondary 155.svg Puerto Rico Highway 155