Knock y Doonee (also spelled as Knock-e-Dhooney) is a significant historical and archaeological site in the parish of Andreas on the northern coast of the Isle of Man.

In 1927 Kermode, now director of the Manx Museum,[2] returned to Knock y Doonee to excavate the hill-top mound some 300m away within which a Viking Age boat burial and associated grave goods were discovered.

[3] Most of the keeills on the Isle of Man have now been destroyed or lost—there may have been over three hundred but now less than three dozen have upstanding remains, Knock y Doonee is one of the best-preserved of these.

[5] The walls were constructed from beach boulders and surface stones, and with an average thickness of 1.1 m. Like many keeills, the structure was small, measuring 9.7 m × 8.2 m internally.

[6] Just West of the Keeill a Manx-mudstone ('Manx slate') pillar stood in the ground, with no visible markings but obviously erected by hand of man.

The face inscription in Latin reads Ammecati filius Rocati hic iacit ("Ammecatos son of Rocatus lies here").

In autumn 1927 P. M. C. Kermode excavated a large grass covered burial mound on a hilltop some 300 m SE of the Keeill.

The man was most likely a prominent member of his community due to the quality of his grave goods and the elaborate burial that was given to him.