List of highways numbered 21

For roads named A21, see List of A21 roads Route 21, or Highway 21, can refer to: == International == E21 European route E21 == Australia == Chandler Highway Toowoomba Connection Road (QLD) – Kakadu Highway == Austria == Wiener Außenring Autobahn == Cambodia == National Road 21 (Cambodia) == Canada == Alberta Highway 21 British Columbia Highway 21 Manitoba Highway 21 Newfoundland and Labrador Route 21 Ontario Highway 21 Prince Edward Island Route 21 Saskatchewan Highway 21 == Costa Rica == National Route 21 == Cuba == Highway 6–21 Highway 4–21 (former) == Czech Republic == I/21 Highway; Czech: Silnice I/21 == Greece == EO21 road == Hungary == Main road 21 (Hungary) == India == National Highway 21 (India) == Iran == Road 21 == Ireland == N21 road (Ireland) == Italy == Autostrada A21 == Japan == Japan National Route 21 == Korea, South == National Route 21 == Malaysia == Kajang–Seremban Highway FT 21 Malaysia Federal Route 21 == Moldova == M21 highway (Moldova) == New Zealand == New Zealand State Highway 21 == Paraguay == National Route 21 == Turkey == O-21, a motorway in Turkey running from Kemerhisar, Niğde Province to Tarsus, Mersin Province.

Source: Wikipedia — List of highways numbered 21 (CC BY-SA 4.0)