Sylvia Hermon (born 11 August 1955) is a Northern Ireland unionist politician. She has been Ulster Unionist Party member of Parliament for North Down since the 2001 when she defeated the incumbent MP, Robert McCartney. She had the support of the local branch of the Alliance Party of Northern Ireland who withdrew their cadidate from the contest.

She is married to Jack Hermon, former Royal Ulster Constabulary Chief Constable.