Mary Ruth Polak (born 1967 or 1968) is a Canadian politician who served as a member of the Legislative Assembly of British Columbia (MLA) representing the riding of Langley from 2005 until her defeat in the 2020 general election.

She was re-elected to the Legislative Assembly of British Columbia in 2017, having represented the constituents of Langley since 2005 and was appointed Minister of Health on June 12, 2017 by Premier Christy Clark.

Chief Justice Beverly McLachlin dismissed the school board's argument that children would be confused or misled by classroom information about same-sex parents.

In doing so, Surrey became the first school district in British Columbia to approve books depicting same sex families as recommended learning resources for primary grades, including kindergarten.

[5] A week before Election Day, Polak's campaign manager, Todd Hauptman, resigned, citing homophobia among the Langley electorate as his reason for stepping down.

[10] Xtra!, a magazine that publishes lesbian and gay Canadian news, requested an interview with Hauptman to which he originally assented and later declined.