Sister cities of Dieppe, New Brunswick

Dieppe is a Canadian city in Westmorland County, New Brunswick. It is New Brunswick's fourth-most-populous city with a history and identity that goes back to the eighteenth century. It was first incorporated as a town in 1952 and designated as a city in 2003. Its namesake comes from a commune in the Seine-Maritime department, a port on the English Channel, in France and was adopted by the citizens of the area to commemorate the Second World War's Operation Jubilee, the Dieppe Raid of 1942.

Dieppe is officially a francophone city; French is the native language of 73.9% of the population. A majority of the population reports being bilingual in French and English. Residents generally speak French with a regional accent (colloquially called "Chiac") in which is unique to southeast New Brunswick. Regardless of language, however, a large majority of Dieppe’s population were in favour of the by-law regulating the use of external commercial signs in both official languages, which is a first for the province of New Brunswick. Dieppe is the largest predominantly francophone city in Canada outside Québec; while there are other municipalities with greater total numbers of francophones, they constitute a minority of the population in those cities. It was one of the co-host communities of the first Congrès Mondial Acadien (Acadian World Congress) which was held in Moncton in 1994.

The city of Dieppe had an estimated population of 23,310 (CSd) in 2011 with a 25.6% growth rate from 2006 to 2011. Dieppe is part of the Greater Moncton Census Metropolitan Area (CMA), which includes 14 census subdivisions (CSd), and is New Brunswick's most populous with an estimated population of 138,644, according to the 2011 census.