George Bucknam Dorr (December 29, 1853 – August 5, 1944) was an American preservationist. Known as the "father of Acadia National Park," he spent most of his adult life overseeing the park's formation and expansion. Charles William Eliot called the first meeting of what would evolve into the Hancock County Trustees of Public Reservations in 1901, but it was Dorr's vision that ensured the lands would be protected and preserved for future generations.