is a Japanese actor who specializes in voice acting. Inspired by voice acting by Kappei Yamaguchi, Tachibana decided to become a voice actor himself, which he later accomplished through connections from his father's theater company. Some of his noteworthy roles include Jin Mori in The God of High School, Eisaku Ohtomo in Aoashi, and Sà Âjirà  Sakuraba in Fanfare of Adolescence.
Tatsumaru Tachibana was born in Fukui Prefecture on April 21, 1991. In kindergarten, Tachibana watched Kappei Yamaguchi perform the male version of Ranma Saotome in Ranma ý, which inspired Tachibana to pursue voice acting. At the age of ten, his father founded a theater company, which is where he started acting professionally. Tachibana later used the connections he earned from this work to become a voice actor. He announced his marriage to voice actress Minami Tsuda in 2024.