Mary Deros

Mary Deros
Member of the Montreal Executive Committee responsible for cultural communities
In office
November 2009 – November 2025
Preceded byMarie-Andrée Beaudoin
Member of the Montreal Executive Committee responsible for youth
In office
April 2011 – November 2012
Succeeded byÉmilie Thuillier
Member of the Montreal Executive Committee responsible for community, social development, and families
In office
January 2009 – November 2009
Preceded byMarcel Tremblay
Succeeded byLyn Thériault
Member of the Montreal Executive Committee responsible for sports, recreation, social development, and neighbourhoods
In office
1998–2001
Preceded byMartin Lemay (until 1997)
Succeeded byCosmo Maciocia (sports and recreation), Louise O'Sullivan (social development)
Montreal City Councillor for Parc-Extension Ward
In office
1998–2025
Preceded byKonstantinos Georgoulis
Succeeded byElvira Carhuallanqui
Personal details
Born
PartyVision Montreal (1998-2007)
Union Montreal (2007-2012)
Independent (2012-2013)
Équipe Denis Coderre (2013–present)

Mary Deros was a municipal politician in Montreal, Quebec, Canada. She represented Parc-Extension on Montreal city council from 1998 until 2025.

Deros was previously an executive committee member in the administrations of Pierre Bourque and Gérald Tremblay. Originally elected as a member of Vision Montreal, Deros subsequently joined Union Montreal before becoming an independent councillor in December 2012; in June 2013, she reaffiliated with Équipe Denis Coderre and stayed with the party as it was renamed Ensemble Montréal.