Kotono Tanaka (田中 琴乃, Tanaka Kotono, born 18 August 1991) is a Japanese group rhythmic gymnast.

She represents her nation at international competitions.

[1] Tanaka was born in Beppu, Ōita Prefecture.

She participated at the 2008 and 2012 Summer Olympics in London.

This biographical article related to Japanese rhythmic gymnastics is a stub.