How many different political parties does japan have?

Here are the majors. Democratic Party of Japan(DPJ)
Minshutō 民主党

The DPJ is Japan's largest party. It was formed in the late 1990s as a result of the merger of several anti-LDP parties. Its membership covers a broad spectrum of political beliefs, but it is generally perceived as a center-leftparty.


Liberal Democratic Party(LDP)
Jiyū Minshu-tō 自由民主党,
or Jimin-tō 自民党

The LDP is Japan's second largest political party. It is aconservative party and is made up of various conservative and centrist factions. The LDP has been in power almost continuously since 1955, when it was formed as a merger of early postwar Japan's two conservative parties, the Liberal Party of Japan, and the Democrat Party of Japan


There are 2 to answer your question, and 3 minor ones.