Gonzalo Sánchez de Lozada Sánchez de Bustamante (born 1 July 1930), familiarly known as "Goni", is a Bolivian politician and businessman. He served as President of Bolivia for two non-consecutive terms from 6 August 1993 through 6 August 1997 and again from 6 August 2002 through his resignation on 17 October 2003. He is a lifelong member of the Movimiento Nacionalista Revolucionario (MNR).