Louisdale is an unincorporated area within the Municipality of the County of Richmond, Nova Scotia, Canada. It is located on Cape Breton Island at the centre of an Acadian region. Founded mainly by families from nearby Petit-de-Grat, its early settlers were primarily of Acadian and, from the early 19th century, Scottish descent. It has two schools, park areas, and places to eat catering to tourists and residents.