Thornton's was a restaurant that was housed, in the period 2002–2016, in the Fitzwilliam Hotel, St. Stephen's Green, County Dublin, Ireland. It was previously located on Portobello Road since 1989. It became a fine dining restaurant, that held a one-star Michelin rating in the periods 1996-2000 and 2006–2015. In the period 2001-2005 it held a two-star rating. The restaurant closed on 29 October 2016. The space is now occupied by Glovers Alley.