セクシーオトナジャン (Romaji: Sexy Otonajan) was one of the three Hello! Project shuffle units formed in 2005, along with Elegies and Puripuri Pink. Sexy Otonajan was the only shuffle unit to feature any of the Hello! Project Kids. They released the song Onna, Kanashii, Otona (オンナ、哀しい、オトナ, English: Woman, Sad, Grown-Up) on the combined 2005 shuffle unit single.
