DynCorp, formally DynCorp International, was an American private military contractor. Started as an aviation company, the company also provided flight operations support, training and mentoring, international development, intelligence training and support, contingency operations, security, and operations and maintenance of land vehicles. DynCorp received more than 96% of its more than $3 billion in annual revenue from the U.S. federal government. The corporate headquarters were in an unincorporated part of Fairfax County near Falls Church, Virginia, while the company's contracts were managed from its office at Alliance Airport in Fort Worth, Texas. DynCorp provided services for the U.S. military in several theaters, including Bolivia, Bosnia, Somalia, Angola, Haiti, Colombia, Kosovo and Kuwait. It also provided much of the security for Afghan president Hamid Karzai's presidential guard and trained much of the police forces of Iraq and Afghanistan. DynCorp was also hired to assist recovery in Louisiana and neighboring areas after Hurricane Katrina. The company held one contract on every round of competition since receiving the first Contract Field Teams contract in 1951.
In 2020, Dyncorp was bought by Germantown, Maryland-based defense support services conglomerate Amentum. On April 21, 2021, the DynCorp name was discontinued, and employees and services transferred to Amentum.