December 6
Flags will be flown at half-mast from sunrise to sunset on the National Day of Remembrance and Action on Violence Against Women.
November 19-November 28
Flags will be flown at half-mast until sunset on November 28 in memoriam of OPP Constable Marc Hovingh. Hovingh passed away on November 19.
November 11
Flags will be flown at half-mast from sunrise to sunset on Remembrance Day.
November 1
Flags will be flown at half-mast from sunrise to sunset in memoriam of former MPP Margaret Birch. Birch passed away on October 29.
October 4
Flags will be flown at half-mast from sunrise to sunset on Firefighters’ Memorial Day (Ontario).
September 27
Flags will be flown at half-mast from sunrise to sunset on Police and Peace Officers' National Memorial Day.
September 19-October 6
Flags will be flown at half-mast until sunset on October 6 in memoriam of former Prime Minister John Turner. Turner passed away on September 19.
September 13
Flags will be flown at half-mast from sunrise to sunset on Firefighters' National Memorial Day.
September 9
Flags will be flown at half-mast from sunrise to sunset in memoriam of former MPP James A. Taylor. Taylor passed away on September 1.
August 9
Flags will be flown at half-mast from sunrise to sunset in memoriam of former MPP Douglas Jack Wiseman. Wiseman passed away on August 1.
July 14
Flags will be flown at half-mast from sunrise to sunset in memoriam of former MPP William Walter Barlow. Barlow passed away on July 5, 2020.
June 23
Flags will be flown at half-mast from sunrise to sunset on the National Day of Remembrance for Victims of Terrorism.
April 28
Flags will be flown at half-mast from sunrise to sunset on The Day of Mourning for Persons Killed or Injured in the Workplace.
April 24
Flags will be flown at half-mast from sunrise to sunset in memoriam of former MPP Aileen Carroll. Carroll passed away on April 19.
April 9
Flags will be flown at half-mast from sunrise to sunset on Battle of Vimy Ridge Day.
February 10
Flags will be flown at half-mast from sunrise to sunset in memoriam of former MPP Jim Brown. Brown passed away on January 31.
January 9–10
Flags will be flown at half-mast from sunrise to sunset in memory of the victims of the plane crash in Tehran, Iran.