The Book of Ballymote (Irish: Leabhar Bhaile an Mhóta, RIA MS 23 P 12, 275 foll.) was written in 1390 or 1391 in or near the town of Ballymote, now in County Sligo, but then in the tuath of Corann.
According to David Sellar who was the Lord Lyon King of Arms in Scotland, the Book of Ballymote was written from between 1384 and 1405. According to Robert Anthony Welch, it was compiled in the late 14th century.