Arthur B. Heaton (November 12, 1875–December 6, 1951) was an American architect from Washington, D.C. During his 50-year career Heaton designed over 1,000 commissions, including many notable buildings listed on the National Register of Historic Places (NRHP). He was the first supervising architect of the Washington National Cathedral and one of several local architects responsible for designing many of the buildings in the Burleith, Cleveland Park, Kalorama Triangle, and Woodley Park neighborhoods.