The fictional hobbit who inherits Bilbo Baggins’s quest is Frodo Baggins, whose first name is Frodo.
Frodo is the central protagonist of The Lord of the Rings. Bilbo, his older cousin and guardian, leaves the One Ring to Frodo when Bilbo departs from the Shire. Frodo later carries the Ring toward Rivendell and joins the Fellowship formed to destroy it in Mount Doom.
The name Frodo comes from Tolkien’s adaptation of the Old Norse name Fróði. Tolkien often developed personal names through historical languages, linguistic patterns, and the internal traditions of Middle-earth. Frodo’s role is not that of a warrior-king; his significance comes from endurance, moral burden, and his willingness to accept an unwanted responsibility.
Readers sometimes confuse Frodo with other similar names in Tolkien’s legendarium. Faramir is a Man of Gondor, Fredegar “Fatty” Bolger is another hobbit, and Fëanor is a powerful Elf from the First Age. Frodo Baggins is specifically Bilbo’s heir and the Ring-bearer of the main narrative.