MS Stena Superfast X is a fast ropax ferry in service between Holyhead in the UK and Dublin in Ireland for Stena Line. She replaced Stena Nordica on the route in March 2015. The ferry was refurbished in Gdansk, Poland for her new service and was returned to her original design before her SeaFrance career and looks identical to her sisters Stena Superfast VII & VIII. Before November 2014 she operated between Dover and Calais for DFDS Seaways France and between 2008 and 2012 for SeaFrance.