Iorek Byrnison is a character from Philip Pullman's fantasy series, His Dark Materials. He is a powerful armored bear, known as a panserbjørn, who has lost his armor and his sense of purpose. Iorek is initially found in the town of Trollesund, where he works as a laborer, but he longs to reclaim his lost dignity and strength. Throughout the series, Iorek becomes a loyal ally to the protagonist, Lyra Belacqua. His character embodies themes of honor, identity, and redemption, as he seeks to regain his armor and reclaim his rightful place among his kind.