Save Type Surname (from location) Usage Japanese Scripts 戸沢, 戸澤(Japanese Kanji) とざわ(Japanese Hiragana) Pronounced Pron. /to̞.zäh.ɰᵝäh/ [key·simplify] Other Forms FormsTosawa Meaning & History From Japanese 戸 (to) meaning "door" and 沢 or 澤 (sawa) meaning "swamp, wetland, marsh".