The Political Party of Radicals was a Christian-radical, progressive Christian and green political party in the Netherlands. The PPR played a relatively small role in Dutch politics and merged with other left-wing parties to form GreenLeft in 1991.

The Christian left is a range of Christian political and social movements that largely embrace social justice principles and uphold a social doctrine or social gospel based on their interpretation of the teachings of Christianity. Given the inherent diversity in international political thought, the term Christian left can have different meanings and applications in different countries. While there is much overlap, the Christian left is distinct from liberal Christianity, meaning not all Christian leftists are liberal Christians and vice versa.