Tatsuya Fujiwara (born May 15, 1982, in Chichibu, Saitama, Japan) is a Japanese actor. He began his career in theater and later gained international recognition as Shuya Nanahara in Battle Royale (2000) and Light Yagami in the live-action Death Note films.

His other notable roles include Kaiji Itō in the Kaiji films and Shishio Makoto in Rurouni Kenshin: Kyoto Inferno and The Legend Ends (2014). Fujiwara has also worked extensively on stage, including several productions directed by Yukio Ninagawa.