GUAYAQUIL, ECUADOR: FOUNDED BY A CONQUISTADOR jacquelinemhadel 10 years ago Advertisements Guayaquil was founded officially on July 25, 1538 by Francisco de Orellana, a Spanish conquistador. 30dec15. Guayaquil, Ecuador. Share this: Share on X (Opens in new window) X Share on Reddit (Opens in new window) Reddit Share on Facebook (Opens in new window) Facebook Share on Tumblr (Opens in new window) Tumblr Share on Pinterest (Opens in new window) Pinterest Email a link to a friend (Opens in new window) Email More Print (Opens in new window) Print