Christa Päffgen (; 16 October 1938 - 18 July 1988), known professionally as Nico, was a German singer, songwriter, actress and model.

Nico had roles in films including Federico Fellini's La Dolce Vita (1960) and Andy Warhol's Chelsea Girls (1966). At the insistence of Warhol, she sang lead on three songs of the Velvet Underground's