This is a list of mass shootings in the United States that have occurred in 2019. Mass shootings are incidents involving multiple victims of firearm-related violence. The precise inclusion criteria are disputed, and there is no broadly accepted definition. There were 434 mass shootings in 2019 that fit the inclusion criteria of this article, resulting in 517 deaths and 1,643 injuries, for a total of 2,160 victims. Compared to the previous year, there were 111 more incidents.