Saint John Harbour (French: Saint-Jean-Havre) is a provincial electoral district for the Legislative Assembly of New Brunswick, Canada. It was represented from its creation for the 1995 election until October 13, 2005 by Elizabeth Weir, the leader of the New Democratic Party of New Brunswick from 1988 to September 25, 2005. Liberal Ed Doherty had then taken the spot by winning a by-election on November 14, 2005 and was re-elected in the 2006 general election. It is currently represented by PC Arlene Dunn who was first elected in the 2020 general election.