Tosaka

Tosaka (written: 登坂 or 戸坂) is a Japanese surname. Notable people with the surname include:

• {{Nihongo|Eri Tosaka|登坂 絵莉||born 1993}}, Japanese sport wrestler
• {{Nihongo|Hiroomi Tosaka|登坂 広臣||born 1987}}, Japanese singer and actor
• {{Nihongo|Jun Tosaka|戸坂 潤||1900–1945}}, Japanese philosopher