Theis Jacob Thorkildsen Lundegaard (8 October 1774 – 26 February 1856) was a Norwegian farmer, shipowner and politician. He represented Lister amt (now Vest-Agder) at the Norwegian Constituent Assembly in 1814. He was elected to the Parliament of Norway from 1815 to 1816, from 1821 to 1822, from 1827 to 1833, and in 1845.[1][2]