José Ignacio García Hamilton (1 November 1943 – 17 June 2009) was an Argentine writer, noted historian, lawyer and politician.

He worked as a columnist and Secretary General of La Gaceta newspaper in Tucumán - which was owned by his family and edited by his father.

García Hamilton suggested that his ongoing interest in the subject of authoritarianism in Latin American politics might have been responsible.

(Buenos Aires: Albino y Asociados, 1990) Vida de un ausente: la novelesca biografía del talentoso seductor Juan Bautista Alberdi.

(Buenos Aires: Editorial Sudamericana, 1993) Cuyano alborotador: la vida de Domingo Faustino Sarmiento.

(Buenos Aires: Editorial Sudamericana, 1998) Don José: la vida de San Martín.