Ernest Douglas "Ernie" Isley ECA (born June 29, 1937) is a former school principal and provincial and municipal level politician from Alberta, Canada. He served as a member of the Legislative Assembly of Alberta from 1979 to 1993. He is the former mayor for the town of Bonnyville, Alberta, Isley served that post after being acclaimed in a by-election on March 7, 2006, until being defeated by Gene Sobolewski on October 21, 2013.