2006 Ottawa municipal election

The 2006 Ottawa municipal election was held on November 13, 2006, in Ottawa, Canada, to elect the mayor of Ottawa, Ottawa City Council and the Ottawa-Carleton Public and Catholic School Boards. The election was one of many races across the province of Ontario. See 2006 Ontario municipal elections.

The race featured three main candidates: incumbent mayor Bob Chiarelli, former Kanata councillor Alex Munter and businessman Larry O'Brien. The race began as a fight between Chiarelli and Munter, with Munter getting the edge and 2003 candidate Terry Kilrea in a close third. However, in the summer O'Brien joined the campaign, prompting Kilrea to drop out and endorse Chiarelli. However, most of Kilrea's support went to O'Brien, creating a tight three-way race. Chiarelli's support then got pulled away from the right by O'Brien and to the left by Munter and was eventually depleted, and by the last weekend before the election, O'Brien had caught up to Munter and led for the first time. This lead carried through on election day.

In the end, Munter could only win his core areas in the central part of the city, plus his former home of Kanata, while O'Brien won the rest of the city—suburban areas and the rural areas (where he did especially well). Chiarelli did not win any wards, but he did finish second in Gloucester-South Nepean with 28%. This area of the city was where his O-Train proposal was going to be built.