John L. Noseworthy is a Canadian accountant and politician who served as Auditor General of Newfoundland and Labrador from April 25, 2002, till July 30, 2011. Noseworthy was the Progressive Conservative Party of Newfoundland and Labrador candidate for the district of Signal Hill-Quidi Vidi in the October 2011 provincial election losing to New Democratic Party candidate Lorraine Michael.