Hull—Aylmer (formerly known as Hull) is a federal electoral district in Quebec, Canada, that has been represented in the House of Commons of Canada since 1917.

It was created as "Hull" in 1914 from parts of Labelle and Wright ridings. It was renamed "Hull—Aylmer" in 1984.

It encompasses the parts of the sectors of Hull and Aylmer located in the city of Gatineau, Quebec. The neighbouring ridings are Gatineau, Pontiac, Ottawa West—Nepean, Ottawa Centre, and Ottawa—Vanier.

With its large percentage of civil servants, the riding was a Liberal stronghold for almost a century, and the safest Liberal riding in the province outside Greater Montreal. Even when the rest of the province was turning its back on the Liberals, they survived in Hull—Aylmer in 1984, 2004 and 2006. In 2008, however, it was the only riding in Canada where four candidates received over 15% of the vote, and was the only riding in Quebec outside of the Montreal area the Liberals managed to win. In a major turnaround during the 2011 elections, however, the New Democratic Party won the riding as part of its sweep of the Outaouais. This was the first time the Liberals have lost the riding in an election; the only other time it was out of Liberal hands was from 1990 to 1993, when Gilles Rocheleau crossed the floor to the Bloc Québécois. The winner of that election, Nycole Turmel, was the interim leader of the NDP from July 28, 2011 until March 24, 2012, following the death of NDP leader Jack Layton.

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