Saxton Smith (October 2, 1802 – 1890) was an American politician from New York.
He was born at the house built by his grandfather, located in that part of Philipstown, New York, then in Dutchess County, which was separated in 1839 as the Town of Quincy, and renamed in 1840 as Putnam Valley, now in Putnam County.
He was Supervisor of the Town of Putnam Valley in 1841, 1842, 1850, 1851, 1858, 1860, 1862, 1863 and from 1867 to 1876.
He was a member of the New York State Assembly (Putnam Co.) in 1838, 1840 and 1844.
He was a member of the New York State Senate from 1846 to 1849, sitting in the 69th, 70th (both 2nd D.), 71st and 72nd New York State Legislatures (both 7th D.).