List of mass shootings in the United States in 2026
Wikimedia list article
This is a list of mass shootings that took place in the United States in 2026. Mass shootings are incidents in which several people are injured or killed due to firearm-related violence; specifically for the purposes of this article, this consists of a total of four or more victims. A total of 338 people have been killed and 1,396 people have been wounded in 332 shootings, as of August 31, 2026.
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 project applies the most expansive definition: four or more shot in any incident, including the perpetrator.
A 2019 study of mass shootings published in the journal Injury Epidemiology recommended developing "a standard definition that considers both fatalities and non-fatalities to most appropriately convey the burden of mass shootings on gun violence." The authors of the study further suggested that "the definition of mass shooting should be four or more people, excluding the shooter, who are shot in a single event regardless of the motive, setting or number of deaths."
Definitions generally exclude consideration of the number of persons targeted with lethal intent, perhaps with degraded accuracy from a greater distance, who escape injury from bullets or bullet spall, regardless of injury sustained while evading live gunfire, or medical complications resulting from those injuries (such as infection, concussion, stroke, or post-traumatic stress disorder) further down the road.
Only incidents considered mass shootings by at least two of the above sources are listed below, provided that four victims were injured.
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This entry incorporates text from “List of mass shootings in the United States in 2026” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.