Michael Quintero Aguilar (Spanish pronunciation: [ˈmajkol kinˈteɾo aɣiˈlaɾ]; born July 11, 1980) is a Colombian professional tennis player. Quintero reached a career high ATP singles ranking of world No,. 245, achieved on 12 November 2007. He also reached a career high ATP doubles ranking of world No. 231, achieved on 27 October 2008.