Lennoxville, population 4,963 (2001), is a borough (Fr. arrondissement) of the City of Sherbrooke, Quebec, Canada. It was originally a town, but was amalgamated into the larger city of Sherbrooke in 2002. Located on the Massawippi , Saint-François River and Ascot Rivers , Lennoxville is a primarily English-speaking community, located in the heart of the Eastern Townships. The community has long been known as the centre of English language education in the area, though it is considered to be one of the most bilingual communities in Quebec (with anglophones comprising 66% of the population and francophones representing 34%) and is widely regarded as an all-season resort area. The (old) city of Sherbrooke, population 110,000, is five kilometres away.

Lennoxville was first settled in 1819. Its name is taken from Charles Lennox, Duke of Richmond, who was then the Governor General of Canada.

Lennoxville is home to Alexander Galt High School, Bishop's University, Champlain Regional College and Bishop's College School.