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Ontario’s Big City Mayors (OBCM) 


OBCM Mayors represent cities with populations of 100,000 or more

OBCM provides a voice for big city mayors in policy and program decisions that impact Ontario cities. Through policy development, advocacy, discussion and partnerships, Ontario’s Big City Mayors support strong and effective cities.  Mayor Marianne Meed Ward, City of Burlington is the current Acting-Chair.

What's New

Ontario's Big City Mayors

June 1st marks the start of #PrideMonth! We join all of our municipalities in celebrating progress made towards equity & inclusion while recognizing the work that still needs to be done. #HappyPride #2SLGBTQIA+ #LoveIsLove Read More

Jun 01 2023

RT @CamGuthrie: Lots of great panelists tomorrow! Feel free to sign up to listen in on shared issues that many places are struggling with l… Read More

May 30 2023

OBCM joined municipal leaders from across 🇨🇦 at #FCM2023AC to discuss issues like housing affordability/supply, climate change & a new municipal fiscal framework. Key takeaways learned will help Ont. cities continue their work creating local solutions to these national challenges Read More

May 30 2023


Mailing address: 6-2400 Dundas St WMississauga, ON L5K 2R8
Phone: 647-308-6602



Chair: Mayor Marianne Meed Ward –
Executive Director: Michelle Baker –, 647-308-6602



Media Relations: Michelle Baker –, 647-308-6602