The list of worker deaths in United States labor disputes captures known incidents of fatal labor-related violence in U.S. labor history, which began in the colonial era with the earliest worker demands around 1636 for better working conditions. It does not include killings of enslaved persons. According to a study in 1969, the United States has had the bloodiest and most violent labor history of any industrial nation in the world, and few industries were immune from that blot.
This list is not comprehensive. Several factors including multi-sided conflicts, physically remote locations, company-controlled locations, and exaggerated or biased original reporting make some of the death and injury counts uncertain. In all, the number of deaths documented total over 1,100.
The table below has three sections: violence perpetrated by law enforcement and companies' militia, armed detectives and guards; executions by the state; violence perpetrated by vigilantes, strikers, mobs and hate groups.