Francisco Guillermo Flores Pérez (October 17, 1959 – January 30, 2016) was a Salvadoran politician who served as President of El Salvador from June 1, 1999 to June 1, 2004 as a member of the conservative Nationalist Republican Alliance (ARENA).
He was the first former Salvadoran president to be indicted and tried on corruption charges.
He was placed under house arrest during the latter days of his life.During his tenure as President, he oversaw the replacement of the Salvadoran colón with the US dollar as El Salvador's official currency.
Flores was accused in May 2014 of pocketing US$15million donated by Taiwan, intended for survivors of the 2001 El Salvador earthquakes.