Alan William John West, Baron West of Spithead, GCB, DSC, PC (born 21 April 1948) is a retired admiral of the Royal Navy and formerly, from June 2007 to May 2010, a Labour Parliamentary Under-Secretary of State at the British Home Office with responsibility for security and a security advisor to Prime Minister Gordon Brown. Prior to his ministerial appointment, he was First Sea Lord and Chief of the Naval Staff from 2002 to 2006.