Chiaki Saegusa (born 21 March 1997) is a Japanese rugby sevens player.

Saegusa made her international sevens debut for Japan at the 2021 Asia Rugby Women's Sevens Series in Dubai.

[1] In 2023, She won a silver medal at the delayed 2022 Asian Games in Hangzhou, China.

[1] She competed for Japan at the 2024 Summer Olympics in Paris.

This Japanese rugby union biography is a stub.