Frank de Jong is a Canadian politician, environmentalist, and elementary school teacher. De Jong holds a Bachelor of Arts degree from the University of Western Ontario in 1978 and a Bachelor of Education from University of Ottawa in 1979. He developed an interest in environmental concerns during the mid-1980s, and became involved in campaigns to save Ontario's old growth forests. He was also involved in the anti-nuclear, renewable energy and pro-choice movements. Later, he joined the Green Party of Ontario in 1987 and became the party's first official leader from 1993 to 2009 and leader of the Yukon Green Party from 2017 to 2019. Frank has also campaigned for federal office as a member of the Green Party of Canada.

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