Radical Action was a political group within the British Liberal Party. It advocated for Liberal candidates to stand in elections despite the war-time electoral pact. The organisation was founded in 1941 as the Liberal Action Group. It included some prominent members of the Liberal Party who disagreed with the war-time electoral pact in which the Liberals, Conservative Party and Labour Party agreed not to stand candidates against each other. Initially, its leading figures were Lancelot Spicer, Honor Balfour and , while Philip Fothergill became treasurer and Donald Johnson was the first chairman.