"Caoineadh Airt Uí Laoghaire" is an Irish elegy composed by the poet Eibhlín Dubh Ní Chonaill in the 18th century. It mourns the death of her husband, Art O'Leary, who was killed in a violent incident. The poem is notable for its emotional depth and vivid imagery, reflecting the profound grief and loss experienced by the poet. The elegy is written in the Irish language and is considered a significant work in Irish literature. It captures themes of love, sorrow, and the impact of loss on the human spirit. The poem has been celebrated for its lyrical beauty and remains an important part of Ireland's cultural heritage.