The neutrality and factual accuracy of this article are disputed. Please see the relevant discussion on the talk page. (May 2008)

Radical left can refer to:

• The radical left, an umbrella term to describe those who adhere explicitly and openly to revolutionary socialism, communism or anarchism — the "radical" qualifier tends in this case to denote a revolutionary fervor, and is a subset of, but should not be confused with, the far left

• Ultra-left, a specific subset of the radical left adhering to ideologies such as left communism and some types of anarchism

• Det Radikale Venstre - a social-liberal party in Denmark

• Left Radical Party - a social-liberal party in France