Robert Allison (March 10, 1777 – December 2, 1840) was a member of the U.S. House of Representatives from Pennsylvania. Robert Allison born near Greencastle, Pennsylvania. He attended local and private schools, and moved to Huntingdon, Pennsylvania, in 1795. He was employed as a clerk in his brother’s office, studied law, was admitted to the bar in April 1798 and commenced the practice of law in Huntingdon. He served as a captain in the Huntingdon Volunteers during the War of 1812. At the close of the war returned to Huntingdon and resumed the practice of law. He served as a burgess of Huntingdon in 1815, 1817, 1819, 1821–1824, and again in 1826.