List of United States Congress members killed or wounded in office

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Since the United States Congress was established with the 1st Congress in 1789, fourteen of its members have been killed while in office, and fourteen have suffered serious injuries from attacks. The members of Congress were either injured or killed by someone intending serious harm, or there is evidence of lethal intent by an unknown assailant (such as the two congressmen who died of the National Hotel disease). The first member of Congress to be killed or wounded in office was Henry Wharton Conway who was killed in a duel in 1827. The most recent death occurred in 1983 when Korean Air Lines Flight 007, carrying Larry McDonald, was shot down over the Pacific Ocean. The most recent Congress member to be injured was Angie Craig who was assaulted in 2023.

All of the 14 Congressmen killed in office were male and 10 were Democrats, three were Republicans, and one was a Democratic-Republican. Four members died in duels, and a total of ten (three senators, six members of the House of Representatives, and one territory delegate to the House) died from gunshot wounds.

Fourteen Congress members have been wounded while in office. Six of the wounded were Republicans, six were Democrats, and one member each from the Anti-Jacksonian and Whig parties. Two were women, and four were senators. Five of those injured were wounded during the 1954 United States Capitol shooting incident.