Reported fatalities for the Day of Mourning

The National Day of Mourning is on April 28 every year, to remember those who have lost their lives to work-related injury or illness. The Day of Mourning was recognized in national legislation by an act of parliament on February 1, 1991.

Every year on the Day of Mourning, the WSIB, together with the Ministry of Labour, reports on the fatalities in Ontario workplaces. The Day of Mourning fatality statistic includes all workplaces in Ontario and not just those covered by the WSIB. The number is verified by the WSIB, the Ministry of Labour and the Chief Prevention Office. In 2020, there were 245 people who died from a work-related injury or illness in Ontario.

There are different methods used for reporting fatalities for various purposes which is why different statistics are reported. The WSIBs fatality statistics are different from the Day of Mourning statistics.

The WSIB’s traumatic and occupational disease fatality statistics only include workplaces covered by the WSIB under the Workplace Safety and Insurance Act. They include traumatic fatalities that happened in a specific year as well as occupational disease fatalities that were allowed in that year, even though the death may have happened years earlier. People who died while receiving 100 per cent permanent disability benefits under pre-1990 legislation are not included. We recognize that these people were employed in an Ontario business, had a permanent disability, and have since passed away. Since we could not confirm these deaths were related to the original injury or illness, they are not included in our annual fatality reporting.

The provincial number of work-related fatalities reported on the Day of Mourning includes Ministry of Labour fatalities for people not covered under the Workplace Safety and Insurance Act, as well as occupational disease fatalities where the death happened in the specified year. This number is different from WSIB-only statistics where occupational disease fatalities are reported when entitlement has been given to survivor benefits within the specified year. For more information on fatalities related to the Day of Mourning please visit the Ministry of Labour website at

To view
or historical and supplementary data, please go to Open Data Downloads.

Data in By the Numbers: 2020 WSIB Statistical Report may not match previously published results. This is due to factors such as data maturity, updated definitions and methodologies, and rounding. Data in By the Numbers is matured three months, with the exception of benefit payments, which represents cash paid during the year, to or on behalf of people injured at work and are not matured three months following year-end. Percentages may not add up due to rounding.