Peter Andrew Stewart Milliken PC OC FRSC (born November 12, 1946) is a Canadian lawyer and politician. He was a member of the Canadian House of Commons from 1988 until his retirement in 2011 and served as Speaker of the House for 10 years beginning in 2001. Milliken represented the Ontario riding of Kingston and the Islands as a member of the Liberal Party. On October 12, 2009, he became the longest serving Speaker of the House of Commons in Canadian history.