The 1909 municipal election was held December 13, 1909 for the purpose of electing a mayor and four aldermen to sit on the Edmonton City Council, as well as three public school trustees and five separate school trustees. There were also eight proposed bylaws put to a vote of the electorate concurrently with the election.
There were eight aldermen on city council, but four of the positions were already filled: Wilfrid Gariépy, John Lundy, Herman McInnes, and James McKinley had been elected to two-year terms in 1908 and were still in office.
There were six trustees on the public board of trustees, but three of the positions were already occupied: William Clark, Allan Gray, and W Ramsey had been elected to two-year terms in 1908 and were still in office.
In early November 1909, incumbent mayor Robert Lee announced that he would not seek re-election, a position he re-affirmed November 25 after being petitioned to reconsider. Subsequent to this, alderman Robert Manson confirmed that he would run. Some expected him to be challenged by alderman Wilfrid Gariépy, but the latter announced that he had no interest in running, and would support Manson provided that he endorsed some reforms to the city's commission. Manson was expected to win by acclamation until December, when Lee announced that he would run after all.
Lee promised to devote his entire time to serving as mayor, as he had done during his first term, despite his earlier statements that he was not running because he did not feel confident that he would be able to do so. He opposed the gravity water scheme on the grounds that it would result in the cost of water to Edmontonians more than doubling.
Manson supported restraint in infrastructure spending - emphasizing that the city's street railway should be extended only when warranted by business, and not merely to exploit vacant property - and offered his conditional support for a gravity water system. He favoured moving the city's penitentiary to the outskirts to make better use of prime residential land, and supported selecting the city's commissioners on the basis of business acumen rather than technical expertise. He also planned to eliminate the deficits that the city's utilities ran by instituting a system of "frontage assessment".