New Brunswick New Democratic Party leadership election, 2005

The New Brunswick New Democratic Party, a social democratic political party in the Canadian province of New Brunswick, held a leadership election in 2005, following the resignation of previous leader Elizabeth Weir on October 8, 2004. The convention was held in Fredericton from September 23–25, 2005 with the vote for leader to held on September 25, though all members were eligible to vote by mail.

The particulars for the convention were determined on January 15, and the original deadline for candidates to enter the race was June 23, 2005. However, on July 4 the party announced the deadline had been extended to July 12.

A candidate was required to win a majority of votes, had no candidate won an absolute majority on the first round of voting, the second preferences of the third placed candidated would have been counted to determine a leader. This was not necessary however as Allison Brewer won on the first round of balloting.

The following potential candidates, widely suggested by media following Weir's resignation, announced that they would not run for the leadership:

The New Brunswick Telegraph-Journal reported on May 25 that the following individuals were considering a run. Neither of them ever denied this publicly, but the deadline to enter the race passed without their entry.