Half-masting is the practice of lowering flags as a sign of respect and to express collective sorrow. It is a visual mark to honour the passing of an individual, a group of persons or an occasion of great sadness. Flags hoisted to half-mast are raised to full-mast and then lowered to approximately half-way down the flagpole and returned to full-mast following the appointed time.

Feb. 4 to 11
The late Detective Constable Meghan Crook, York Regional Police

March 11
National Day of Observance for COVID-19

April 9 to 17
The late His Royal Highness The Prince Philip, Duke of Edinburgh

April 28
Day of Mourning for Persons Killed or Injured in the Workplace (Workers' Mourning Day)

May 31 to June 8
In Memory of the 215 First Nations, Métis, and Inuit children discovered on the Kamloops Indian Residential School grounds in Tk'emlúps te Secwe̓pemc territory

June 9
In Memory of the Afzaal family who were targeted and killed because of their Islamic faith.

June 23
National Day of Remembrance for Victims of Terrorism

June 24 - July 25
In Memory of the 751 First Nation, Métis and Inuit people discovered in unmarked graves near the site of the former Marieval Indian Residential School in Saskatchewan

Sept. 26
Police and Peace Officer's National Memorial Day

Nov. 11
Remembrance Day

Dec. 6
National Day of Remembrance and Action on Violence Against Women