Rockall Basin
（重定向自Rockall Plateau）
![Bathymetric features to the northwest of Scotland and Ireland](/Images/godic/202502/07/Rockall_Trough3053.jpg")
![North Atlantic around Iceland](/Images/godic/202502/07/N-Atlantic-topo3053.png")
The Rockall Basin (also known as the Hatton Rockall Basin) is a large (c. 800 km by 150 km) sedimentary basin that lies to the west of Ireland and the United Kingdom beneath the major deepwater area known as the Rockall Trough. It is named after Rockall, a rocky islet lying 301.4 km west of St Kilda.