The 2018 Toronto shooting, known locally as the Danforth shooting, was a mass shooting that occurred on Danforth Avenue in the Greektown neighbourhood of Toronto, Ontario, Canada on the night of July 22, 2018. Faisal Hussain killed two people and wounded thirteen using a Smith & Wesson M&P .40-calibre handgun. He died by suicide after a shootout with Toronto Police Service (TPS) officers. Despite a year long investigation, authorities were unable to determine a motive for the shooting. They noted that Hussain had mental health issues and a long time obsession with violence.

A mass shooting is a violent crime in which one or more attackers kill or injure multiple individuals simultaneously using a firearm. There is no widely accepted definition of "mass shooting" and different organizations tracking such incidents use different definitions. Definitions of mass shootings exclude warfare and sometimes exclude instances of gang violence, armed robberies, familicides and terrorism. The perpetrator of an ongoing mass shooting may be referred to as an active shooter.