The Clan O'Connor of Tyrconnell (Irish: Ua Conchobair of Tir Chonaill) was an Irish clan from Tyrconnell, hailing from the city of Gartan in what is now County Donegal, Ireland. The clan would rule over Tyrconnell after taking power during the late 11th century, and King Einri of Eire would hail from the Clan O'Connor, which became the ruling dynasty of Ireland.