Nathan Cullen (born July 13, 1972) is a Canadian federal politician who was the Member of Parliament for the riding of Skeena—Bulkley Valley from the 2004 federal election until 2019.
A member of the New Democratic Party (NDP), Cullen was re-elected in 2006, 2008, 2011, and 2015, allowing him to serve in the 38th, 39th, 40th, 41st, and 42nd Parliaments.
Cullen was a candidate in the 2012 New Democratic Party leadership election, and came in third.
During the 41st Parliament, Cullen was the House Leader for the Official Opposition and then Finance critic in Thomas Mulcair's Shadow Cabinet.
He is currently the NDP critic for Democratic Reform as well as Ethics, and deputy critic for Finance in the 42nd Parliament.