敦巴顿橡树园（Dumbarton Oaks）是一座位于美国首都华盛顿哥伦比亚特区市郊的联邦式府第，建于1920年，现时为敦巴顿橡树园研究图书馆及馆藏库（Dumbarton Oaks Research Library and Collection）。美国、英国、苏联和中国在1944年举行的敦巴顿橡树园会议在此召开，商讨联合国的创立。

See: Dumbarton Oaks Park for the adjacent park; Dumbarton Oaks Conference for the 1944 meeting that laid the groundwork for the United Nations; Concerto in E-flat (Dumbarton Oaks) for the concerto by Igor Stravinsky

Dumbarton Oaks is a historic estate in the Georgetown neighborhood of Washington, D.C. It was the residence and gardens of Robert Woods Bliss (1875–1962) and his wife Mildred Barnes Bliss (1879–1969).

The Dumbarton Oaks Research Library and Collection was founded here by the Bliss couple, who gave the property to Harvard University in 1940. The research institute that has emerged from this bequest is dedicated to supporting scholarship in the fields of Byzantine, Pre-Columbian, and garden design and landscape architecture studies, especially through its research fellowships, meetings, exhibitions, and publications. Dumbarton Oaks also opens its gardens and museum collections to the public, and hosts public lectures and a concert series.