Kokona Ishikawa

is a Japanese badminton player who competes in doubles. A bronze medalist in girls' doubles at the 2022 World Junior Championships, she has won a World Tour Super 100 title at the 2025 Kaohsiung Masters. Ishikawa achieved a career-high women's doubles ranking of No. 23. A former member of the Japanese national team, she plays for the Gifu Bluvic badminton team.

Early career Born in Tokyo, Ishikawa attended Aomori Yamada Junior and Senior High Schools, where she won several national titles. In 2021, she and Hina Osawa won the girls' doubles title at the National High School Invitational Tournament, for which they received the All Japan High School Athletic Federation's Excellent Player Award. She also won the All Japan Junior Open doubles with Miyu Ogasawara.

The following year, she partnered with Riko Kiyose to win the girls' doubles title at the National High School Championships (Inter-High). As team captain, she also led Aomori Yamada to a second consecutive victory in the girls' team event at the National Sports Festival. For these achievements, Ishikawa and Kiyose were presented with the 17th Tō-Ō Nippō Sports Award.

On the international junior circuit in 2022, Ishikawa won the girls' singles title at the Malaysia Junior International, defeating compatriot Tomoka Miyazaki in the final. She joined the NTT East badminton team in April 2023. The duo won the Northern Marianas Open in August; at the same tournament, Ishikawa finished as the mixed doubles runner-up with Haruki Kawabe.

Achievements World Junior Championships Girls' doubles Year Venue Partner Opponent Score Result Ref 2022 Palacio de Deportes de Santander,Santander, Spain Riko Kiyose Liu Shengshu Wang Tingge 21–17, 13–21, 17–21 Bronze Bronze

BWF World Tour (1 title, 1 runner-up) The BWF World Tour, which was announced on 19 March 2017 and implemented in 2018, is a series of elite badminton tournaments sanctioned by the Badminton World Federation (BWF). The BWF World Tour is divided into levels of World Tour Finals, Super 1000, Super 750, Super 500, Super 300, and the BWF Tour Super 100.

Women's doubles Year Tournament Level Partner Opponent Score Result Ref 2025 Indonesia Masters Super 100 Ririna Hiramoto Lin Xiao-min Wang Yu-qiao 17–21, 9–21 Runner-up 2025 Kaohsiung Masters Super 100 Ririna Hiramoto Hinata Suzuki Nao Yamakita 21–16, 21–17 Winner

BWF International Challenge/Series (2 titles, 5 runners-up) Women's doubles Year Tournament Partner Opponent Score Result Ref 2023 Thailand International Mio Konegawa Kim Yu-jung Lee Yeon-woo 19–21, 11–21 Runner-up 2023 Bahrain International Mio Konegawa Gabriela Stoeva Stefani Stoeva 19–21, 14–21 Runner-up 2024 Vietnam International Mio Konegawa Laksika Kanlaha Phataimas Muenwong 19–21, 14–21 Runner-up 2024 Denmark Challenge Mio Konegawa Laksika Kanlaha Phataimas Muenwong 16–21, 18–21 Runner-up 2024 Saipan International Mio Konegawa Kim Hye-jeong Kim Yu-jung 21–19, 11–21, 21–18 Winner 2025 Northern Marianas Open Ririna Hiramoto Hinata Suzuki Nao Yamakita 21–17, 21–15 Winner

Mixed doubles Year Tournament Partner Opponent Score Result Ref 2025 Northern Marianas Open Haruki Kawabe Akira Koga Yuho Imai 19–21, 13–21 Runner-up BWF Junior International Series tournament

Performance timeline

National team Junior level Team events 2022 Ref World Junior Championships B

Individual competitions Junior level Girls' doubles

Mixed doubles Event !! 2026 !! Ref

Ririna Hiramoto Players Liu Shengshu & Tan Ning 1 0 1 –1 Apriyani Rahayu & Siti Fadia Silva Ramadhanti 1 0 1 –1 Baek Ha-na & Lee So-hee 1 0 1 –1

Maiko Kawazoe Players Liu Shengshu & Tan Ning 1 0 1 –1

Haruki Kawabe Players Chen Tang Jie & Toh Ee Wei 1 0 1 –1