Geoffrey Paul Regan is a retired Canadian politician who served as the 36th speaker of the House of Commons from 2015 to 2019. A member of the Liberal Party, he was the Member of Parliament (MP) for Halifax West from 2000 to 2021, previously holding the seat from 1993 to 1997. Under Paul Martin, he was Minister of Fisheries and Oceans from 2003 to 2006.