Rin Iwanaga

Rin Iwanaga
Personal information
Born (1999-05-21) 21 May 1999
Height1.66 m (5 ft 5 in)
Sport
CountryJapan
SportBadminton
HandednessRight
Coached byKei Nakashima
Women's doubles
Highest ranking4 (with Kie Nakanishi, 11 March 2025)
Current ranking7 (with Kie Nakanishi, 23 December 2025)
BWF profile
Medal record
Women's badminton
Representing  Japan
World Championships
2025 Paris Women's doubles
Sudirman Cup
2025 Xiamen Mixed team
Asian Championships
2022 Manila Women's doubles
Asia Mixed Team Championships
2025 Qingdao Mixed team
Asia Team Championships
2024 Selangor Women's team
World Junior Championships
2017 Yogyakarta Mixed team
Asian Junior Championships
2017 Jakarta Mixed team

Rin Iwanaga (岩永 鈴, Iwanaga Rin; born 21 May 1999) is a Japanese badminton player affiliated with the BIPROGY team. Specializing in women's doubles with partner Kie Nakanishi, she has won six BWF World Tour titles and achieved a career-high ranking of world No. 4 in March 2025.

Iwanaga's major achievements include a bronze medal at the 2025 World Championships in Paris and a silver medal at the 2022 Asian Championships in Manila. She and Nakanishi won their first BWF World Tour title at the 2023 Syed Modi International, and captured their first Super 750 title at the 2024 Denmark Open. The duo had a particularly successful 2024 season, winning five consecutive tournament finals. Iwanaga has also represented Japan in team competitions, winning bronze medals at the 2025 Asia Mixed Team Championships and Sudirman Cup.