The Erdini (Έρδινοι) or Erpeditani (Έρπεδιτανοι) were a people of referred to in

Ptolemy Claudius Ptolemy (; grc-gre, Πτολεμαῖος, ; la, Claudius Ptolemaeus; AD) was a mathematician, astronomer, astrologer, geographer, and music theorist, who wrote about a dozen scientific treatises, three of which were of importanc ...

's 2nd century ''

Geography Geography (from Greek: , ''geographia''. Combination of Greek words ‘Geo’ (The Earth) and ‘Graphien’ (to describe), literally "earth description") is a field of science devoted to the study of the lands, features, inhabitants, and ...

'' as living in the north-west of

Ireland Ireland ( ; ga, Éire ; Ulster Scots dialect, Ulster-Scots: ) is an island in the Atlantic Ocean, North Atlantic Ocean, in Northwestern Europe, north-western Europe. It is separated from Great Britain to its east by the North Channel (Grea ...

, in the area of

Donegal Bay Donegal Bay (''Bá Dhún na nGall'' in Irish) is an inlet (or bay) in the northwest of Ireland. Three counties – Donegal to the north and west, Leitrim and Sligo to the south – have shorelines on the bay, which is bounded on the w ...

.Philip Freeman, ''Ireland and the Classical World'', University of Texas Press, 2001, p. 75

References

Prehistoric Ireland Tribes of ancient Ireland {{Ireland-hist-stub