Seamus Heaney's Beowulf is a modern translation of the Old English epic poem 'Beowulf,' published in 1999. Heaney's version revitalizes the ancient text, capturing its themes of heroism, mortality, and the struggle between good and evil while making it accessible to contemporary readers. His translation is significant for its poetic qualities, linguistic richness, and engagement with the cultural context of both the original work and modern society.