House of Councillors elections were held in Japan on July 21, 2013 to elect the members of the upper house of the National Diet. In the previous elections in 2010, the Democratic Party of Japan (DPJ) remained the largest party, but the DPJ-led ruling coalition lost its majority. The House of Councillors is elected by halves to six year terms. In 2013, the class of Councillors elected in 2007 was up.