Edmundston /ˈɛdməndstən/ is a Canadian city in Madawaska County, New Brunswick.
During the early colonial period, the area was an important camping and meeting place of the Maliseet (Wolastoqiyik) nation during seasonal migrations. From the mid to late eighteenth century, one of the largest Maliseet villages had been established at Madawaska and had become a refuge site for other Wabanaki peoples. Originally, the settlement was located near the falls at the confluence of the Madawaska and Saint John Rivers. Currently there is a federal reserve a few kilometres from Edmundston (St. Basile 10/Madawaska Maliseet First Nation). Originally named Petit-Sault (Little Falls) in reference to the waterfalls located where the Madawaska River merges into the Saint John River, the settlement was renamed Edmundston in 1851 after Sir Edmund Walker Head, who was Lieutenant-Governor of New Brunswick from 1848 to 1854 and Governor-General of Canada from 1854 to 1861. Originally a small logging settlement, Edmundston's growth is mostly attributed to the city's strategic location.
Edmundston was a provincial electoral district for the Legislative Assembly of New Brunswick, Canada. It has been superseded by the Edmundston-Saint Basile district in 2006.