Thanh James Le (born August 28, 1985) is an American mixed martial artist, currently competes in the Featherweight division for the ONE Championship, he is a former interim and lineal ONE Featherweight World Champion. A professional since 2012, Le has competed in Legacy Fighting Alliance. He also appeared on reality television series The Ultimate Fighter: Team McGregor vs. Team Faber.

Le was born on August 28, 1985, in Owensboro, Kentucky, United States. His father migrated from Vietnam and met his mother in Kentucky, before the family moved to New Orleans, Louisiana, when he was 5 years old.

Le made his professional MMA debut in November 2013. Over the next, he fought in his native United States and earned a record of 4 wins against 1 losses with all of his wins coming via stoppages.

On August 31, 2015, it was announced that Le would be a contestant on the 22nd season of The Ultimate Fighter reality show, representing Team Faber.

In the opening elimination bout, Le faced fellow American Andrés Quintana. He won the fight via knockout in the first round.

Le represented Team Faber in the first preliminary fight of the season facing Sweden's Martin Svensson. He lost the fight via rear-naked choke submission in the second round.

Le his promotional debut against Alex Black on February 10, 2017, at LFA 3. He won the fight via TKO in the first round.

Le appeared in Dana White's Contender Series 2 on July 18, 2017, against Lazar Stojadinovic. He won the fight via knockout in the second round, he wasn't given a UFC contract.