This is a list of mass shootings that took place in the United States in 2025. Mass shootings are incidents in which several people are injured or killed due to firearm-related violence, specifically for the purposes of this article, a total of four or more victims. A total of 155 people have been killed and 443 people have been wounded in 117 shootings, as of April 30.
Definitions
Several different inclusion criteria are used; there is no generally accepted definition. Gun Violence Archive, a nonprofit research group that tracks shootings and their characteristics in the United States, defines a mass shooting as an incident in which four or more people, excluding the perpetrator(s), are shot in one location at roughly the same time.
The Congressional Research Service provides a definition of four or more killed. The Washington Post and Mother Jones use similar definitions, with the latter acknowledging that their definition "is a conservative measure of the problem", as many shootings with fewer fatalities occur. The crowdsourced Mass Shooting Tracker...