Miguel Juan SebastiÃ n PiÃ era Echenique ; born December 1 , 1949 ) is the current President of Chile having won the second round of the presidential election that took place on January 17 , 2010 , and subsequently taking office on March 11 , 2010 . Miguel Juan SebastiÃ n PiÃ era Echenique ( ; born December 1 , 1949 ) is the current President of Chile . He won the second round of the presidential election that took place on January 17 , 2010 and took office on March 11 , 2010 .