Juan Margallo (born 24 September 1940) is a Spanish actor, theater director and dramaturge. He has been considered as one of the main actors in the Spanish theater. He has worked with Miguel Narros, Luis Escobar Kirkpatrick and José Tamayo. In 1976 he played Woyzeck, by Georg Büchner and La sangre y la ceniza, by Alfonso Sastre.In 2011 he founded with his spouse Petra Martínez the Uroc Teatro, which received the Medalla de Oro al Mérito en las Bellas Artes.