Daniel Green (born May 29, 1955) is a Canadian Politician and environmentalist. Since the 70’s, he has been an environmental activist and consultant for the Sierra Club of Canada, the Société pour vaincre la pollution (SVP), Coalition Eau Secours, Fondation Rivières, Nature Québec, Parks Canada and for numerous municipalities.

He was named Deputy Leader of the Green Party of Canada by Elizabeth May and entered politics at the end of 2014.

Since 1980, as the head of SVP, he has intervened in the vast majority of important environmental contamination issues at both provincial and national levels.

Since the early 2000s, Daniel Green has continued to serve as co-chair of the SVP and is helping to promote various programs that allow the public to learn more about the contamination of their environment.

Green is very involved in his community. Whether it is supporting the victims of the asbestos exposure, Trichloroethylene contamination of the municipality of Shannon water supply in 2010 or he support for victims of the Lac-Mégantic train tragedy, Daniel Green is constantly fighting to prevent or eliminate potential sources of pollution that could harm the health and safety of the population.

He decided to get involved in politics under the banner of the Green Party of Canada at the end of 2014. Elizabeth May appointed him Deputy Leader of the Party and he ran as a candidate in the Canadian federal election of 2015 in the riding Ville-Marie - South-West - Iles-des-Sœurs.

As part of the electoral reform project initiated by the Liberal government following the October 2015 election, Daniel Green has advocated for the introduction of a proportional voting system. He believes that proportional representation would make elections more democratic and representative.