Owen Ultach

Owen Ultach (; died 26 October 1586) was a sixteenth-century Irish physician. He was the ollam leighis (official physician) to the O’Donnell clan of Tyrconnell.

Background Ultach was born in the sixteenth century to the Ó Duinnshléibhe family. Formerly the ruling dynasty of Ulaid, by the late-fourteenth century, they were a medical family of physicians to the O'Donnell clan.

Ultach was, like his father, educated in the medical arts in Paris and known for his general learning. He was considered the finest physician of his time in Ireland.

Death Owen Ultach died on 26 October, 1586. His obituaries in the Annals of the Four Masters and the Annals of Ulster read, respectively:

1586 - Owen Ultach (the son of Donough), i.e. the Doctor, died; and this Owen was a doctor in regard of learning, for he excelled the medical doctors of Ireland in the time in which he lived.

Ultach is the last recorded ollam leighis to the O'Donnell clan.