Shintarō Tanaka is a Japanese voice actor, or seiyū, born on May 12, 1992, in Tokyo, Japan. He is affiliated with the talent agency Space Craft. Tanaka has built a career spanning over a decade, providing voices for a wide array of characters in anime television series and original net animations (ONA).

His filmography consists largely of supporting and recurring roles across numerous productions. In the 2010s, he appeared in series such as Triage X, Flip Flappers, and The Seven Deadly Sins. He also had a recurring role as Kei Nagara across multiple installments of the Cardfight!! Vanguard G franchise. In 2018, Tanaka voiced the character Mario Luis Zurita in the Netflix original anime B: The Beginning, a role he reprised for its sequel, B: The Beginning Succession.

Continuing his work in the 2020s, Tanaka was part of the cast for Cap Kakumei Bottleman and voiced the character Makaba in the series Fena: Pirate Princess. His roles also include Henchman in Am I Actually the Strongest? and Ricky in KamiKatsu: Working for God in a Godless World. Beyond anime, his voice work extends to Japanese dubs of foreign animation, such as providing the voice for Launchpad McQuack in the 2017 version of DuckTales, and to video games, like voicing Darros in Fire Emblem Heroes.