Adon P. Brown (October 12, 1873 – April 22, 1942) was an American lawyer and politician from New York.
He was the son of Henry Brown (1830–1888) and Jennie L. (White) Brown.
He practiced law in Leonardsville.
Brown was a member of the New York State Senate from 1917 to 1920, sitting in the 140th, 141st (both 37th D.), 142nd and 143rd New York State Legislatures (both 39th D.); and was Chairman of the Committee on Agriculture in 1920.
He died on April 22, 1942, in Tampa, Florida; and was buried at the Leonardsville Cemetery.
New York Solicitor General Wendell P. Brown (c.1884–1966) was his brother.