Socialist Left might refer to:

• Socialist Left (Argentina)
• Socialist Left (Australia), a faction of the Australian Labor Party
• Socialist Left (Germany), a current in the Left Party
• Socialist Left (France), a caucus of the French Socialist Party
• Socialist Left (Peru)
• Socialist Left (Quebec), a faction of Québec solidaire

Socialist Left might also refer to:

• Socialist Left Party (Austria)
• Socialist Left Party (Norway)
• Union of the Socialist Left, French former political movement