The Giant in "Jack and the Beanstalk" is a large, fearsome character who lives at the top of a giant beanstalk. He is known for his immense size and strength, which make him a formidable figure. The Giant possesses treasures, including a magical golden goose that lays golden eggs and a harp that plays beautiful music. In the story, Jack, a young boy, climbs the beanstalk to the Giant's castle, seeking adventure and riches. The Giant is often portrayed as greedy and dangerous, creating tension as Jack tries to steal from him. Ultimately, the Giant represents the challenges and obstacles that Jack must overcome in his quest.