This article is about the community. For the geographic parish, former local service district, and census subdivision, see Musquash Parish, New Brunswick.
Musquash was settled in the early 1800s at the head of navigation on the Musquash River. The Shore Line Railway (later Canadian Pacific Railway) was built through the community but has since been abandoned. The community includes the locales of Ivanhoe, West Musquash and Clinch's Mills. A post office was located in Musquash from 1847 to 1969. It was largely a farming and lumbering community but is now largely an exurb of Saint John, thanks to being located on the Route 1 expressway.