The Sun Party (太陽党, Taiyōtō) was a short-lived political party in Japan which existed from 1996 to 1998.

It was a liberal reformist party that was opposed to the ruling coalition led by the Liberal Democratic Party (Japan).

It was led by Tsutomu Hata, a former Prime Minister of Japan.

Other notable members included Katsuya Okada, the future head of the Democratic Party of Japan.

This article about a Japanese political party is a stub.