Utacchi is a rhythm video game developed and published by Konami for the Nintendo DS in 2010. It was released exclusively in Japan under the Pop'n Music series. The game plays with the system held in "book style" as the player interacts with falling notes using the stylus. The name 'Utacchi' is a portmanteau of the Japanese words "uta", meaning 'song', and "tachi", a loan word from English meaning 'touch'.

Utacchi plays like other Bemani games, where notes travel down lanes into a judgement area. When the note reaches the center of the judgement area, one of four actions must be taken based on the note's color. To pass a song, the player must finish with at least 2/3 of the life bar full. As in other rhythm games, this is raised by hitting notes in time with the music. There are three timing grades: Good, Okay, and Boo. The first two will raise your life bar, while the last will deplete it.