Yazawa (written: 矢沢, 矢澤, 谷沢 or 谷澤) is a Japanese surname. Notable people with the surname include:
Ai Yazawa (矢沢 あい, born 1967), Japanese manga author
Akiko Yazawa (矢澤 亜希子, born 1980), Japanese professional backgammon player
Eikichi Yazawa (矢沢 永吉, born 1949), Japanese singer-songwriter
Erika Yazawa (谷澤 恵里香, born 1990), Japanese gravure idol
Kazuki Yazawa (born 1989), Japanese slalom canoer
Nao Yazawa (谷沢 直), Japanese manga artist
Tatsuya Yazawa (谷澤 達也, born 1984), Japanese footballer
Wataru Yazawa (矢澤 航, born 1991), Japanese hurdler
Yoko Yazawa (矢沢 洋子, born 1985), Japanese singer-songwriter
Fictional characters:
Yazawa - fictional character from Kamen Rider Blade. The human guise of the Capricorn Undead
Nico Yazawa, a character in the anime and franchise Love Live!