MOSAIC.WAV is a Japanese moe-pop band from Akihabara, best known for performing theme songs for eroge before beginning to produce original works in 2004.

In an interview with JaME, member Susumu Kayamori explained that the name “MOSAIC” was inspired by church windows—symbolizing color and diverse passions—while “WAV” refers to the digital audio format.

Their songs have been featured as opening themes for Sumomomo Momomo and Kyouran Kazoku Nikki. The band consists of vocalist MI-KO, keyboardist Susumu Kayamori, and guitarist Masaya Koike.