Eulogia Echaurren García-Huidobro (1830–1887) was First Lady of Chile and the wife of President Federico Errázuriz Zañartu.
She was born in Santiago, the daughter of José Gregorio de Echaurren y Herrera and of Juana García-Huidobro y Aldunate. She was also the mother of President Federico Errázuriz Echaurren and of María Errázuriz Echaurren.