Dorval–L'Île-Dorval was a former borough in the West Island area of Montreal, Quebec. It was composed of the former municipalities of Dorval and L'Île-Dorval.
The municipalities were merged into the city of Montreal by the provincial government on January 1, 2002. On June 20, 2004, both Dorval and L'Île-Dorval voted to return to being independent municipalities. This took effect January 1, 2006, dissolving the borough.