The X7 Coastrider is an hourly bus route between the Scottish cities of Dundee and Aberdeen, via Arbroath and Montrose, operated by Stagecoach East Scotland.

[1] The route was introduced on 12 September 2011 and was initially operated by a fleet of six new Plaxton Elite bodied Volvo B9R coaches.

[4] The extension replaced route number 333, which operated between Perth Royal Infirmary and Dundee's Ninewells Hospital.

[9] The introduction of new coaches has been criticised by passengers who claim that they have insufficient space for wheelchair users, and that the steep stairs are hard to climb.

[10] In response, Stagecoach stated that the vehicles meet Disability Discrimination Act standards and all had a space for a wheelchair user.