Seiichirō Yamashita (born September 11, 1992) is a Japanese voice actor. His notable roles consist of:
Takahiro Mizuno (Walkure Romanze), Clay Sizemore (Soul Eater Not!), and Prince Soarer (Lady Jewelpet). Yamashita lent his voice to Yokochō Gesui in an episode of the anime television series He's Our Fallen Angel.