World's longest high-speed rail networks:

China: 42,000 kilometers Spain: 4,327 km France: 3,977 km Germany: 3,516 km Japan: 2,727 km Italy: 2,017 km UK: 1,927 km South Korea: 1,283 km Turkey: 1,313 km Finland: 1,120 km Sweden: 860 km Uzbekistan: 741 km USA: 735 km Greece: 700 km Russia: 650 km Saudi Arabia: 449 km Taiwan: 332 km Austria: 254 km Portugal: 227 km Poland: 224 km Belgium: 209 km Morocco: 186 km Switzerland: 178 km Indonesia: 142 km Norway: 139 km Netherlands: 90 km Serbia: 75 km Denmark: 56 km Hong Kong: 26 km

Note: International Union of Railways defines high-speed rail as public transport by rail at speeds of at least 200 km/h (124 mph).

According to International Union of Railways, International Railway Journal, Railway Gazette, 2023