Fort Sumner may refer to:
Fort Sumner, a historic fort in New Mexico Fort Sumner, New Mexico, a town near the fort in New Mexico Fort Sumner Municipal Airport, an airport for the town in New Mexico Fort Sumner (Maryland), a Civil War fort in Bethesda, Maryland near Washington, D.C. Fort Sumner (Maine), a former First System fort in Portland, Maine Fort Sumner Park, a city park on the site of Fort Sumner, Portland, Maine
Other similar sounding Fort Sumter, a fort in Charleston, South Carolina where the Civil War began