Arthur Beauchesne CMG QC FRSC (June 15, 1876 – April 7, 1959) was a Canadian civil servant who was Clerk of the House of Commons from 1925 to 1949.

He is the author of the procedural manual, Rules and Forms of the House of Commons of Canada, which is used by Canadian Members of Parliament during parliamentary debates.

[1] Born in Carleton, Bonaventure County, Quebec, Beauchesne received a bachelor's degree from St. Joseph's College in Memramcook, New Brunswick.

[1] In 1912, he joined the federal civil service working in the Department of Justice and in 1916 he was appointed Deputy Clerk of the House of Commons.

From 1939 to 1945 he was acting Sergeant-at-Arms of the Canadian House of Commons following the departure of Milton Fowler Gregg and during World War II.