[2] This article is a listing of past (and present) mayors of Portland.
From 1923 to 1969, the position was named "Chairman of the City Council.
"[3] In 1969, the "Mayor" title was reinstated, but the office continued to be held by the leader of the city council, chosen by a vote of its members.
In 2011, the city returned to the practice of popularly electing a mayor for the first time since 1923.
This information is obtained from the website of the city council.