National Route 25 is a national highway connecting Yokkaichi and Osaka in Japan.
- 1952-12-04 - First Class National Highway 25 (from Osaka to Nara)
- 1953-05-18 - Second Class National Highway 163 (from Osaka to Yokkaichi)
- 1963-04-01 - First Class National Highway 25 (from Yokkaichi to Osaka)
- 1965-04-01 - General National Highway 25 (from Yokkaichi to Osaka)
- ^ 一般国道２５号 (in Japanese). Kinki Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism. Retrieved 2010-11-27.