Bilbo Baggins is the title character and protagonist of J. R. R. Tolkien's 1937 novel The Hobbit, a supporting character in The Lord of the Rings, and the fictional narrator (along with Frodo Baggins) of many of Tolkien's Middle-earth writings. The Hobbit is selected by the wizard Gandalf to help Thorin and his party of Dwarves to reclaim their ancestral home and treasure, which has been seized by the dragon Smaug. Bilbo sets out in The Hobbit timid and comfort-loving, and through his adventures grows to become a useful and resourceful member of the quest.
Bilbo's way of life in the Shire, defined by features like the availability of tobacco and a postal service, recalls that of the English middle class during the Victorian to Edwardian eras. This is not compatible with the much older world of Dwarves and Elves. Tolkien appears to have based Bilbo on the designer William Morris's travels in Iceland; Morris liked his home comforts, but grew through his adventurous journeying. Bilbo's quest has been interpreted as a pilgrimage of grace, in which he grows in wisdom and virtue, and as a psychological journey towards wholeness.
Bilbo has appeared in numerous radio and film adaptations of The Hobbit and The Lord of the Rings, and in video games based on them. Several astronomical features and both living and fossil species have been named for him.
The protagonist of The Hobbit, Bilbo Baggins, is a hobbit in comfortable middle age. He is hired as a "burglar", despite his initial objections, on the recommendation of the wizard Gandalf and 13 Dwarves led by their king in exile, Thorin Oakenshield. The company of dwarves are on a quest to reclaim the Lonely Mountain and its treasures from the dragon Smaug. The adventure takes Bilbo and his companions through the wilderness, to the elves haven, Rivendell, across the Misty Mountains where, escaping from goblins, he meets Gollum and acquires a magic ring. His journey continues via a lucky escape from wargs, goblins, and fire, to the house of Beorn the shapeshifter, through the black forest of Mirkwood, to Lake-town in the middle of Long Lake, and eventually to the Mountain itself.