A leadership election was held on November 11, 2007 in the Panhellenic Socialist Movement (PASOK), Greece's main centre-left party, after it was defeated in the parliamentary election earlier that year. The incumbent, George Papandreou, had stated right after the general elections that he would ask party members to renew their confidence in him, while Evangelos Venizelos and Kostas Skandalidis also declared themselves candidates.

The Panhellenic Socialist Movement, known mostly by its acronym PASOK, is a social-democratic political party in Greece. Until 2012 it was one of the two major parties in the country, along with New Democracy, its main political rival. In the June 2023 Greek legislative election it once again held firm on to its position of one of the ”big three” political parties of Greece.