The following highways are numbered 223:
Canada
Nova Scotia Route 223
Prince Edward Island Route 223
Quebec Route 223
China
China National Highway 223
Costa Rica
National Route 223
Japan
Japan National Route 223
United States
U.S. Route 223
Alabama State Route 223
California State Route 223
Georgia State Route 223
K-223 (Kansas highway) Kentucky Route 223 Maine State Route 223 Maryland Route 223 Minnesota State Highway 223 Montana Secondary Highway 223 Nevada State Route 223 New Mexico State Road 223 New York State Route 223 Ohio State Route 223 (former) Oregon Route 223 Pennsylvania Route 223 (former) South Carolina Highway 223 Tennessee State Route 223 Texas State Highway 223 Utah State Route 223 (former) Virginia State Route 223 Washington State Route 223 Wyoming Highway 223