Selected based on a competitive request-for-proposal process, Ottawa will host the 2017 Association of Municipalities of Ontario Conference at the Ottawa Convention Centre.
The 2012 and 2013 conferences will also be held in Ottawa. The annual August event brings together Ontario's 444 municipal governments.
"AMO has held many successful conferences in the city of Ottawa and we look forward to returning again," said AMO president Gary McNamara in a statement.
"The conference will provide a great economic boost for the city as participants experience all the nation's capital has to offer during the celebrations of the 150th anniversary of Confederation."
Last year, the conference attracted 2,500 participants and many representatives from all levels of government, the release stated.
"I'm delighted to welcome the AMO Conference back to Ottawa in Canada's sesquicentennial (150th) year of 2017," Ottawa mayor Jim Watson stated.
"I know that conference attendees will enjoy Ottawa's excellent attractions and be eager to spend a few days in our nation's capital."
The conference typically features up to 50 sessions and workshops, a trade show and more than 75 speakers addressing public priority, municipal management and the delivery of government programs and services.