McDonnell Douglas aircraft manufacturerGeneral information about McDonnell Douglas, the aerospace company in United States

McDonnell Douglas was a major American aerospace manufacturing corporation and defense contractor formed by the merger of McDonnell Aircraft and the Douglas Aircraft Company in 1967. Between then and its own merger with Boeing thirty years later, it produced a number of well-known commercial and military aircraft such as the DC-10 airliner and F-15 Eagle air-superiority fighter.

The corporation was based at Lambert–St. Louis International Airport near St. Louis, Missouri, while the headquarters for its subsidiary, the McDonnell Douglas Technical Services Company (MDTSC), were established in unincorporated St. Louis County, Missouri.

Following Boeing's 1996 acquisition of Rockwell's North American division, McDonnell Douglas merged with Boeing in August 1997 in a US $13 billion stock swap, with Boeing as the surviving company. Boeing adopted the McDonnell Douglas logo, which shows the globe being encircled in tribute to the first aerial circumnavigation which was accomplished in 1924 using Douglas aircraft.