Colchester—Musquodoboit Valley is a provincial electoral district in Nova Scotia, Canada, that elects one member of the Nova Scotia House of Assembly. The district was created in 1978 from Colchester, and was called Colchester South until 1993. In 1993, the name was changed to Colchester-Musquodoboit Valley and it gained the Salmon River and Musquodoboit Valley areas from Bedford-Musquodoboit Valley, and Millbrook 27 from Truro-Bible Hill. It includes the southern half of Colchester County (not including the Truro area) plus the Musquodoboit Valley region of the Halifax Regional Municipality.