Jennifer Sylvia Brash QSO (born December 1946) is a former New Zealand local government politician.

After retiring as mayor she served for the twelve years from 2010 to 2022 as councillor for Porirua–Tawa on the Greater Wellington Regional Council.

[3] She endorsed the mayoral campaign of councillor Nick Leggett, who was elected in October 2010 as her successor.

[7] In October 2010, Brash was elected to the Greater Wellington Regional Council as one of two councillors for the Porirua–Tawa constituency.

At the close of her mayoralty, she successfully stood for election to the Porirua Community Trust.