The Revolutionary Marxist–Leninist League was a small Maoist political party in Britain.
The group was founded in 1968 by a group of students around Abhimanyu Manchanda, who had been expelled from the CPGB in 1965. It participated in the Joint Committee of Communists, but suffered two splits the following year: of the Communist Workers League of Britain (Marxist–Leninist), and of the Association of Communist Workers around Harpal Brar. In 1971, a further group left, to found the Marxist-Leninist Workers Association, which later merged via the Communist Unity Association into the Revolutionary Communist League of Britain.
In 1977, the group was renamed the Revolutionary Marxist-Leninist Communist League, and it attempted to apply the Three Worlds Theory by working to build anti-Soviet movements in Britain. This did not prove successful, and the group dissolved in 1980.