Duncansby Head (Scottish Gaelic: Ceann Dhunngain[3] or Dùn Gasbaith[4]) is the most northeasterly part of both the Scottish and British mainlands, slightly northeast of John o' Groats.

It lies approximately 20 km (12 mi) east-southeast of Dunnet Head, the northernmost point of both the Scottish and British mainlands.

The point is marked by Duncansby Head Lighthouse, built by David Alan Stevenson in 1924.

[8] In 2016, it was reported in The Sunday Post newspaper that scientists from the Atomic Weapons Establishment in Aldemarston had proposed a nuclear weapon test on the Stacks of Duncansby in 1953, but that the prevailing wet weather was too much for contemporary electronics and the idea was shelved.

This article about a Site of Special Scientific Interest in Scotland is a stub.