Tomari may refer to:
- Tomari, Russia, a town in Sakhalin Oblast, Russia
- Tomari (crater), a crater on Mars, named after the town
- Tomari, Hokkaido, a village in Japan
- Tomari, Tottori, a village in Japan; dissolved in 2004
- Tomari, Okinawa, a neighborhood in Naha, Okinawa, Japan