The following highways are numbered 273:
Canada
Manitoba Provincial Road 273
Quebec Route 273
Japan
Japan National Route 273
United States
Alabama State Route 273
Arizona State Route 273
California State Route 273
Delaware Route 273
Florida State Road 273
Georgia State Route 273
Iowa Highway 273 (former) K-273 (Kansas highway) Kentucky Route 273 Maryland Route 273 Minnesota State Highway 273 Missouri Route 273 Montana Secondary Highway 273 New Mexico State Road 273 New York State Route 273 (former) Ohio State Route 273 Oregon Route 273 South Dakota Highway 273 Tennessee State Route 273 Texas State Highway 273 Texas State Highway Spur 273 Farm to Market Road 273 (Texas) Utah State Route 273 Virginia State Route 273 Wyoming Highway 273