An Clasach Ó Cobhthaigh (died 1415) was an Irish poet.
A member of the Ó Cobhthaigh bardic family, An Clasach is noted in the Oxford Dictionary of National Biography as "a famous poet and man of learning."
He had sons Maeleachlainn Ó Cobhthaigh (died 1429) and Domhnall Ó Cobhthaigh (died 1446), who were also poets.
The O' Cobhthaigh ( Coffey) were known as the heritary brehon (druidic) family of Uisneach
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