The Secret Code is the fourth Japanese studio album (eighth overall) by South Korean pop group Tohoshinki, released on March 25, 2009 by Rhythm Zone.

The Secret Code is Tohoshinki's last original studio album to feature members Jejung, Yuchun, and Junsu.

In Japan, The Secret Code debuted at number two on the Oricon daily charts selling nearly 83,000 copies.

[2] On the weekly chart the album took the number two spot selling over 157,900 copies, behind pop singer Ayumi Hamasaki's Next Level.

[4][5] The first single that was released from the album was the double A-side, "Beautiful You/Sennen Koi Uta", on April 23, 2008.