The Doherty family (Irish: Clann Dhochartaigh) is an Irish clan based in County Donegal in the north of the island of Ireland.

Like clans in other cultures, Irish clans such as the Dohertys are divided into many septs and regional families. In the modern day, there are 140 noted variations in spelling of the name Ó Dochartaigh, of which Doherty (with or without the "Ó") is the most common anglicisation.

The Dohertys are named after Dochartach (fl. 10th century), a member of the Cenél Conaill dynasty which in medieval Irish genealogy traced itself to Niall of the Nine Hostages (see Uí Néill).

The later chiefs of the clan, elected by tanistry under the Brehon Laws, were called the Lords of Inishowen as they were pushed from their original territory in the Laggan valley area of present-day Donegal, into the vacuum left by the end of Mac Lochlainn rule in the northernmost peninsula of the island of Ireland.

Following the Flight of the Earls in 1607, the chief of the Dohertys, Cahir O'Doherty, rose up in the following year against English domination in Ireland and the plantation of Protestant settlers in what is known as Ó Dogherty’s Rebellion. Provoked by the English Governor, Cahir and his followers attacked Derry and burned several castles before ultimately being defeated. After this loss, Cahir was killed in 1608 and the family lost much of its power and influence. By 1784, the leading branch of the family fled the country. The chiefs have been absent from Ireland ever since.

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