The Canadian flags are at half-mast primarily as a sign of mourning and respect for notable individuals who have recently passed away. For example, flags were lowered in August 2025 to honor the late Honourable Alexander D. McEachern, former member of the Legislative Assembly in Alberta, and the late Honourable Hilary Weston, former Lieutenant Governor of Ontario. The protocol for half-masting flags in Canada observes deaths of prominent public figures such as former and current political leaders, members of the royal family, and other distinguished individuals. Flags are also lowered on particular days of national mourning or remembrance, and this practice is governed by specific rules to express collective sorrow and respect.

Thus, if Canadian flags are seen at half-mast currently, it is likely due to a recent death of a significant public figure or an official day of mourning being observed.