Peter Arthur David Baker MC was a British soldier, author, publisher and Conservative politician who served as a member of parliament (MP) for South Norfolk. He is chiefly remembered as the last Member of Parliament to be expelled from the House of Commons by resolution of the House, after his conviction for forgery, and as the inspiration behind the eccentric character of publisher Martin York in Muriel Spark's novel A Far Cry From Kensington.

South Norfolk is a constituency represented in the House of Commons of the UK Parliament since 2001 by Richard Bacon, a Conservative.