Dwalin is a fictional character in The Hobbit by J. R. R. Tolkien. He was one of the Dwarves who traveled with Bilbo and Gandalf.

Dwalin, son of Fundin and younger brother of Balin, is one of the least mentioned Dwarves in The Hobbit. He was the first Dwarf to arrive at Bag End. He wore a dark green hood and a golden belt and had a blue beard. Like his brother he plays the viol. Dwalin lent a hood and cloak to Bilbo when they set out on their journey.

Dwalin supposedly died in IV 91 at the age of 340, very old even for a Dwarf.