Beilby Thompson (17 April 1742 – 10 June 1799) was a British landowner and politician, who sat in the House of Commons from 1768 to 1796. Beilby was the son of Beilby Thompson (died 1750) and Sarah Dawes (died 1773). The Thompsons were a prominent Yorkshire family; Beilby senior was High Sheriff of Yorkshire in 1730 and the son of Henry Thompson, MP.