Shizuka (しずか, シズカ) is a unisex Japanese given name.

• Annie Shizuka Inoh (静), Taiwanese actress
• Shizuka Aoki (青木 静香, born 1972), Japanese voice actress
• Shizuka Arakawa (静香, born 1981), Japanese figure skater
• Shizuka Gozen (静, 1165–1211), Japanese court dancer
• Shizuka Hasegawa (静香, born 1988), Japanese voice actress
• Shizuka Ijūin (静), Japanese novelist and lyricist
• Shizuka Ishibashi (静河, born 1994), Japanese actress and dancer
• Shizuka Ishigami (石上 静香, born 1988), Japanese voice actress
• Shizuka Ishikawa (静, born 1971), Japanese voice actress
• Shizuka Itō (静, born 1980), Japanese voice actress
• Shizuka Kamei (静香, born 1936), Japanese politician
• Shizuka Kudō (静香, born 1970), Japanese singer
• Shizuka Miura (静香, died 2010), Japanese ball-jointed doll maker and musician
• Shizuka Nakamura (中村 静香, born 1988), Japanese gravure idol and actress
• Shizuka Narahara (楢原 静, born 1928), Japanese table tennis player
• Shizuka Okazaki (静夏, born 1992), motorcycle racer
• Shizuka Saitō (齋藤 支靜加, born 1980), Japanese actress, gravure idol, and writer
• Shizuka Sugiyama (born 1987), Japanese mixed martial arts fighter
• Shizuka Yamamoto (静香, born 1975), badminton player
• Shizuka Yokomizo (横溝 静, born 1966), Japanese photographer

• Lady Shizuka, a character in the book Autumn Bridge by Takashi Matsuoka
• Shizuka Dōmeki (静), a male character in the manga and anime series xxxHolic
• Shizuka Hattori (静華), a character in the manga and anime series Detective Conan
• Shizuka Hio (閑), a character in the manga and anime series Vampire Knight
• Shizuka Joestar (静), a character in the manga series JoJo's Bizarre Adventure, by Hirohiko Araki
• Shizuka Kawai (河合静香), a character in the manga and anime series Yu-Gi-Oh!
• Shizuka Marikawa (静香), a character in the series Highschool of the Dead
• Shizuka Minamoto (源静香), a character in the manga and anime series Doraemon
• Shizuka Muto, a character in the book trilogy Tales of the Otori
• Shizuka Nanahoshi (七星静香), a character in the light novel and anime series Mushoku Tensei
• Shizuka, Kaze no (シズカ), a character in the Super Sentai series GoGo Sentai Boukenger
• Shizuka Sakai (酒井静香), a character in the Yo-kai Watch franchise
• Shizuka Shishi (獅子静香), a character in the shōnen manga series Boarding School Juliet
• Shizuka Todou (藤堂静), a character in the shōjo manga series Boys Over Flowers
• Kiryu Shizuka, a character and a Miko from Yuki Yuna is a Hero: Bouquet of Brilliance

• Shizuko, unisex Japanese given name related to Shizuka