Han Lue’s surname in the Fast & Furious franchise is Lue.
Han Lue is a major character played by Sung Kang. He first appeared in Justin Lin’s 2006 film The Fast and the Furious: Tokyo Drift, where he becomes a mentor and friend to Sean Boswell. Han is known for his calm personality, technical driving ability, and habit of eating snacks while working on cars or planning jobs.
The character was later developed in Fast & Furious, Fast Five, and Fast & Furious 6. Those films take place earlier in the franchise chronology than Tokyo Drift, allowing Han’s history with Dominic Toretto’s group to be shown before his apparent death in Tokyo.
Some sources and viewers refer to him simply as Han, while others use the longer name Han Seoul-Oh. The surname Lue is the name used in the character’s franchise biography and related reference material, while “Seoul-Oh” is a separate alias or nickname associated with him.