Seabury is both a surname and a given name of American origin. Notable people with the name include:
Surname: Ruth Isabel Seabury (1892–1955), American missionary, writer and educator Samuel Seabury (1729–1796), American Episcopal bishop Samuel Seabury (1801–1872), rector of the Church of the Annunciation in New York City Samuel Seabury (judge) (1873–1958), judge of the New York Court of Appeals
Given name: Seabury Ford (1801–1855), Governor of Ohio Seabury C. Mastick (1871–1969), New York politician Seabury Quinn (1889–1969), American pulp fiction author