Mio Satomi (里見 未央 Satomi Mio) is a character from GTO: Shonan 14 Days. She is the older sister of Keiichi Satomi.
- The name Mio means "not yet" (未) (mi) and "center" (央) (o).
- Mio's surname Satomi means "village" (里) (sato) and "to see" (見) (mi).
- Keiichi Satomi and Mio are the only two, with the exception of their caretakers and Eikichi Onizuka, that have have no real history of abuse or trauma.