Clett is a name used for many uninhabited Scottish islets and one to the south, though also in the area inhabited by Vikings.^[1] They include -

• One at 58.623644°N 3.5424908°W, near the north coast of Caithness, just to the west Holborn Head north of Scrabster.^[2] It rises sheer from the sea^[3] and is formed of Devonian Thurso Flagstone,^[4] also known as Caithness old red sandstone, part of the Caithness Flagstone Group, which has been eroded to leave a gap of about 15 m (49 ft) between the 30 m (98 ft) high Clett and Holborn Head.^[5]
• About 5 km (3.1 mi) to its west is Clett of Thusater,^[6] also known as Wester Clett,^[7]
• Little Clett, Brough is about 10 km (6.2 mi) to its east.^[8]
• Shetland has two islets named Clett. One is to the south-east of Wells, just south of Westerwick.^[9] It consists of five islets rising to 24 m (79 ft), with low cliffs and a cover of grass.^[10]
• The other islet near Wells lies in Voe of Dale, north-west of it and may have had a promontory fort.^[11]
• Another Clett is just off the north-west coast of Skye, north of Isay and just to the west of Waternish. It too is grass covered^[12] and has cormorants and shags and is made up of basalt/dolerite columns.^[13]
• The only Clett Rock not in Scotland is a rocky islet, just off the Isle of Man coast, near Baldrine.^[14]