William Connoll Walker OBE (20 February 1929 – 6 June 2017), known as Bill Walker, was a British Conservative Party politician who served as Deputy Chairman of the Scottish Conservative Party from 2000 until 2008. He was Member of Parliament (MP) for Perth and East Perthshire later Tayside North from 1979 to 1997. He never held any office in government and was one of the Maastricht Rebels against the embattled administration of John Major during the mid-1990s.