Best of Soul is the second Japanese compilation album by South Korean recording artist BoA.

It also contains two singles that were released for the album, "Quincy / Kono Yo no Shirushi" and "Meri Kuri".

Best of Soul was commercially successful in Japan, becoming BoA's fourth album to attain the number one position.

In order to promote the album BoA released two singles "Quincy / Kono Yo no Shirushi" and "Meri Kuri".

[5] By the end of the year, Best of Soul sold a total of 1,060,039 copies in Japan according to Oricon, making it the ninth best-selling album of 2005.