Thorín Oakenshield is a fictional character from J.R.R. Tolkien's works, primarily known from The Hobbit. He is the leader of the company of Dwarves that sets out to reclaim the Lonely Mountain and its treasure from the dragon Smaug. Thorín is a descendant of the royal line of Durin and is characterized by his strong sense of duty and pride. Throughout the story, Thorín displays both bravery and determination, but his obsession with the treasure leads to conflict with other characters, including Bilbo Baggins and the Elves. His journey ultimately explores themes of leadership, loyalty, and the consequences of greed.