This is a list of people reported killed by non-military law enforcement officers in the United States in the 1900s, whether in the line of duty or not, and regardless of reason or method. The listing documents the occurrence of a death, making no implications regarding wrongdoing or justification on the part of the person killed or officer involved. Killings are arranged by date of the incident that caused death. Different death dates, if known, are noted in the description. This page lists 78 people.