The MS Stena Caledonia is a ropax ferry that was owned and operated by Stena Line. She served on the route that links Stranraer with Belfast. She was built in 1980 as the St. David for Sealink as a replacement for the ageing Stena Normanica, however she was instead placed on the Fishguard-Rosslare route. In 1985, she was transferred to RMT to begin a joint ownership on the Dover-Ostend route. She was renamed as the Stena Caledonia when Stena took over Sealink operations. She is part of the Saint class and has three other sister ships, the Le Rif, the Bari and the Ibn Batouta. She shared her route with the Stena Voyager and the Stena Navigator. On November 22, 2011, after over 30 years of service, the Stena Caledonia was retired, along with the Stena Voyager and the Stena Navigator. They have been replaced by the chartered Tallink vessels, the now Stena Superfast VII and the Stena Superfast VIII. The future of the three former vessels have not been decided.