Roy Herman Kellerman (March 14, 1915 – March 22, 1984) was a U.S. Secret Service senior agent who was assigned to protect United States President John F. Kennedy when he was assassinated on November 22, 1963 in Dallas. In his reports, later testimony and interviews, Kellerman outlines in detail his role in the immediate aftermath of the assassination, controlling key evidence of the crime and guiding doctors during the official autopsy at Bethesda Naval Hospital.