Chiyo is a feminine Japanese given name. Notable people with the name include:
- Chiyo Aizawa, Japanese woman convicted of the murder of her father, who had sexually abused her since childhood
- Chiyo Okumura, Japanese singer
- Fukuda Chiyo-ni (Kaga no Chiyo), a Japanese poet of the Edo period
- Chiyo Uno, Japanese author
- Chiyo Nakamura, Japanese writer
- Yamauchi Chiyo, Japanese noble lady from the Sengoku period
- Mochizuki Chiyo, Japanese kunoichi from the Sengoku period
- Chiyo Miyako, Japanese supercentenarian
Fictional characters[edit]
- Chiyo, from the anime and manga series Naruto
- Chiyo Mihama, from the anime and manga series Azumanga Daioh
- Chiyo Shuuzenji, from Boku no Hero Academia
- Chiyo Sakura, from the anime and manga series Monthly Girls' Nozaki-kun
- Chiyo Tsukidate, a character the Strawberry Panic! anime series
- Sakamoto Chiyo/Nitta Sayuri, from Memoirs of a Geisha
- Chiyo Yumehara, from the anime and manga series The Disastrous Life of Saiki K.
- Chiyo Īn from the manga Kimi no koto ga Dai Dai Dai Dai Daisuki na 100-nin no Kanojo
- Chiyo Suzuki, from the multimedia franchise Yo-Kai Watch