Kazusa may refer to:
, former province of Japan , former town in Minamitakaki District, Nagasaki Prefecture, Japan
People with the surname (died 1183), Japanese samurai lord and gōzoku , Japanese voice actress
People with the given name (born 1975), Japanese voice actress , Japanese Paralympic judoka , Japanese model , Japanese manga artist
Fictional characters Kazusa Kyoyama, a character in the role-playing video game Blue Archive Kazusa Onodera, a character in the manga O Maidens in Your Savage Season Kazusa Touma, a character in the visual novel White Album 2 Kazusa Yamashiro, a character in the anime Muv-Luv Alternative: Total Eclipse