Natsu Saito (齋藤 夏, Saito Natsu, born 9 June 2000) is a Japanese badminton player.

[4] Saito is affiliated with the ACT SAIKYO badminton team.

[5] Saito won her first BWF World Tour title at the 2023 Canada Open in mixed doubles with her partner Hiroki Midorikawa.

[6] Saito also played women's doubles with Naru Shinoya and won the Malaysia International in 2019.

[7] The BWF World Tour, which was announced on 19 March 2017 and implemented in 2018,[8] is a series of elite badminton tournaments sanctioned by the Badminton World Federation (BWF).