National Route 203 is a national highway of

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

connecting

Karatsu, Saga is a city located in Saga Prefecture on the island of Kyushu, Japan. Its name, formed from the Japanese word roots 唐 ''kara'' (China, or continental East Asia in general), and 津 ''tsu'' (port), signifies its historical importance as a ...

and

Saga, Saga is the capital city of Saga Prefecture, located on the island of Kyushu, Japan. Saga was the capital of Saga Domain in the Edo period, and the largest city of former Hizen Province. As of August 1, 2020, the city had an estimated population of ...

in Japan, with a total length of 47.3 km (29.39 mi).

References

National highways in Japan Roads in Saga Prefecture {{Japan-road-stub