The following highways are numbered 198:
Canada Quebec Route 198
India Andhra Pradesh State Highway 198
Japan Japan National Route 198
Malaysia Malaysia Federal Route 198 (Jalan Jedok-Air Canal-Legeh)
United Kingdom road B198 road
United States Alabama State Route 198 Arkansas Highway 198 California State Route 198 Connecticut Route 198 Georgia State Route 198 Iowa Highway 198 (former) K-198 (Kansas highway) Kentucky Route 198 Maine State Route 198 Maryland Route 198 Massachusetts Route 198 M-198 (Michigan highway) (former) Mississippi Highway 198 New Mexico State Road 198 New York State Route 198 North Carolina Highway 198 Ohio State Route 198 Pennsylvania Route 198 South Carolina Highway 198 Tennessee State Route 198 Texas State Highway 198 Farm to Market Road 198 (Texas) Utah State Route 198 Virginia State Route 198
Territories: Puerto Rico Highway 198 Puerto Rico Highway 198R