Denis Naughten (born 23 June 1973) is an Irish politician. He is currently a Teachta Dála (TD) for the Roscommon–South Leitrim constituency. He sits as an independent TD, having been expelled from the Fine Gael parliamentary party in July 2011.
Within his first few weeks in the Dáil he became Fine Gael spokesperson on Youth Affairs, School Transport and Adult Education. Between 2000 and 2001 he served as Opposition spokesperson on Enterprise, Trade and Employment. Although indicating that he might, Naughten declined to stand in the party's leadership election in 2002. He was later appointed spokesperson on Transport. He was party spokesperson on Agriculture from 2004–2007.