Misa Nishiyama

Misa Nishiyama (; born 7 September 2010) is a Japanese artistic gymnast. She is the 2025 Junior World floor exercise champion.

Gymnastics career Nishiyama made her international debut at the 2023 City of Jesolo Trophy. She advanced into the all-around final at the 2023 All-Japan Championships and placed 12th. She then finished 16th at the 2023 NHK Trophy. At the 2024 DTB Pokal Team Challenge, she won a silver medal in the junior team competition, and she placed seventh in the all-around. She also advanced into the uneven bars final, finishing fifth. She won a bronze medal on the balance beam at the 2024 All-Japan Event Championships, behind seniors Kaoruko Takezawa and Urara Ashikawa.

Nishiyama finished eighth in the all-around at the 2025 All-Japan Championships. She then finished sixth all-around at the 2025 NHK Trophy. At the 2025 All-Japan Junior Championships, she won the all-around silver medal, behind Haruka Nakamura.

In November 2025, Nishiyama competed at the 2025 Junior World Championships. She helped the Japanese team win a silver medal with a score of 107.930, finishing behind France, and she advanced into the all-around final in second place. Individually, she won a gold medal on floor exercise with a score of 13.533, and a silver medal on the vault with a score of 13.633, finishing behind team USA's Lavi Crain. In the all-around final, she won a bronze medal with a score of 53.066, finishing behind teammate Yume Minamino and France's Elena Colas.

In June 2026, she competed at the 2026 Asian Women's Artistic Gymnastics Championships where she helped the Japanese team win a silver medal, finishing behind China. Individually, she won bronze in the all-around and on uneven bars.