The Secret Code is the fourth Japanese studio album by South Korean pop group Tohoshinki, released on March 25, 2009 by Rhythm Zone. The album debuted at number two on the Oricon weekly chart. The Secret Code is Tohoshinki's last original studio album to feature members Jejung, Yuchun, and Junsu.

TVXQ, known as Tohoshinki in Japan, is a South Korean pop duo formed by SM Entertainment, composed of U-Know Yunho and Max Changmin.