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 Chair and Mayor Alex Nuttall, City of Barrie is the Vice-Chair.
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What's New
Ontario’s Big City Mayors (OBCM) hold AGM & Conference focused on Tariffs
MARKHAM , ON - Ontario’s Big City Mayors (OBCM) gathered in Markham Thursday, April 10th and Friday April 11th to discuss the significant impact of...
Statement from Ontario’s Big City Mayors on the appointment of Prime Minister Mark Carney and the new Federal Cabinet
Statement from Ontario’s Big City Mayors (OBCM) on the appointment of Prime Minister Mark Carney and new Federal Cabinet March 14, 2025 Ontario’s...
Ontario’s Municipal Leadership Shines on International Women’s Day
Ontario’s Major Municipal Organizations Led by Women Ontario – As we celebrate International Women’s Day 2025, it is a historic moment for municipal...
Ontario's Big City Mayors
Mayor Shaun Collier
Town of Ajax
Mayor Alex Nuttall
City of Barrie
Mayor Patrick Brown
City of Brampton
Mayor Kevin Davis
City of Brantford
Mayor Marianne Meed Ward
City of Burlington
Mayor Jan Ligget
City of Cambridge
Mayor Darrin Canniff
Municipality of Chatham-Kent
Deputy Mayor Willie Woo
Municipality of Clarington
Mayor Cam Guthrie
City of Guelph
Mayor Andrea Horwath
City of Hamilton
City of Kingston
Mayor Berry Vrbanovic
City of Kitchener
Mayor Josh Morgan
City of London
Mayor Frank Scarpitti
City of Markham
Mayor Gordon Krantz
Town of Milton
Mayor Carolyn Parrish
City of Mississauga
Mayor Rob Burton
Town of Oakville
Mayor Dan Carter
City of Oshawa
Mayor Mark Sutcliffe
City of Ottawa
Mayor Kevin Ashe
City of Pickering
Mayor David West
City of Richmond Hill
Mayor Mat Siscoe
City of St. Catharines
Mayor Paul Lefebvre
City of Greater Sudbury
Mayor Ken Boshcoff
City of Thunder Bay
Mayor Olivia Chow
City of Toronto
Mayor Steven Del Duca
City of Vaughan
Mayor Dorothy McCabe
City of Waterloo
Mayor Elizabeth Roy
Town of Whitby
Mayor Drew Dilkens
City of Windsor
ONTARIO’S BIG CITY MAYORS (OBCM)
GENERAL CONTACT
General: info@obcm.ca
Resolutions: info@obcm.ca