Best: Third Universe

Best: Third Universe (stylized as BEST～third universe～) is the third greatest hits album by Japanese recording artist Kumi Koda. It was released as a double album with her eighth studio album Universe on February 3, 2010 by Rhythm Zone. The greatest hits album includes singles between May 2006 "Koi no Tsubomi" and her December 2008 single "Stay with Me", with a bonus disc with newly recorded material. As a double album, it was released in four different formats; a two album bundle, a two album and DVD bundle, a two album first pressing bundle, and a two album digital release. A fifth format was released, but only featured the compilation.

Upon its release, Best: Third Universe was met with generally positive reviews from music critics, many of whom complimented the vastness of Kumi's back catalogue and was noted as one of her strongest releases. Commercially, Best: Third Universe was a success. Charting together as a double album, Best: Third Universe and Universe became Koda's third and fourth number one compilation and studio album to reach the top spot on Japan's Oricon Albums Chart respectively. Best: Third Universe and Universe was certified platinum by the Recording Industry Association of Japan (RIAJ) for shipments of 250,000 units. It also charted in Taiwan, entering the top twenty on two competent charts. Koda promoted the album on her 2010 Universe Tour and her 10th Anniversary Tour, and followed up with remix albums; Koda Kumi Driving Hit's 2 and its third issue.