The mythological hero who fought against the Minotaur in the labyrinth is Theseus. His legendary battle symbolized the triumph of civilization over chaos, as the Minotaur represented primal instincts and bestiality. With the help of Ariadne’s thread, Theseus navigated the intricate labyrinth to confront and defeat the monster. This story emphasizes themes of heroism, ingenuity, and the importance of overcoming fear to reclaim order, establishing Theseus as a key figure in Greek mythological narratives.