Altocolony no Teiri (アルトコロニーの定理, Arutokoronī no Teiri, "The Altocolony Theorem") is Japanese rock band Radwimps' fifth album, released on March 11, 2009. It was preceded by the single "Order Made" in 2008, which became the band's first number one single. The album was a critical and commercial success, with critics noting the successful experimental growth in the band's sound. The album was certified platinum by the Recording Industry Association of Japan, and as of 2011 is tied for their most commercially successful work with the band's previous album, Radwimps 4: Okazu no Gohan.