When residents were later offered the option, they chose to leave the city of Montreal, and the town was reinstated as a separate entity in 2006.

[6] In 2001, the official Commission de toponymie du Québec ruled that the correct orthography of the city's name is Dollard-Des Ormeaux (one hyphen, one space, all title caps) due to the patronymic particle.

The town's name honours the French martyr Adam Dollard des Ormeaux, who was killed by the Iroquois at Long Sault in 1660.

[10] One of its original main axes, Anselme-Lavigne Street in the Westpark neighbourhood, is named for a farmer who sold his land to the Belcourt Construction Company.

Many of the streets in the Sunnydale neighbourhood, including "Sunshine" and "Hyman", are named for members in the prominent Zunenshine family who owned Belcourt.

Des Sources and St-Jean Boulevards are its main commercial arteries, and are represented by the two vertical lines in the city's official logo.

According to the Office québécois de la langue française, Dollard-des-Ormeaux has been officially recognized as a bilingual[12] municipality since 2 Nov 2005.

Dollard-des-Ormeaux is home to the Dollard Civic Centre, which serves as city hall, the public library, and houses ice skating and swimming facilities.

Dollard is home to many juvenile sports teams, including hockey, soccer, baseball, swimming, and ringette.

They are Alfred Labrosse (1960–1963), Frederick T. Wilson (1963–1968), Gerald Dephoure (1968–1978), Jean Cournoyer (1978–1982), Gerry Weiner (1982–1984), Edward Janiszewski (1984–2017) and Alex Bottausci (2017–present).

[20] Established in 1980, a municipal patrol service was initially created to enhance public safety in the city and to enforce parking violations after the merger of police departments on the Island of Montreal.

The service is responsible for public safety, municipal by-law enforcement, crime prevention, emergency measures, and community relations.