Toshiharu Yajima is a Japanese voice actor from Tokyo, Japan. He is affiliated with the talent management firm Aoni Production. His career includes voice work for both anime series and video games.

In anime, Yajima is known for his role as Fans in the series My Hero Academia: Vigilantes, which began airing in 2025. He is also a cast member in the anime Wandance, which premiered in the fall of 2025, where he voices the character Tatsuya. Other anime credits include a role in Ryza no Atelier, also known as Atelier Ryza: Ever Darkness & the Secret Hideout, where he plays the character Fressher.

Beyond television animation, Yajima has contributed to the video game industry. He provided voice work for the title Dynasty Warriors 9.