Ai Tsunoda Roustant[a] (born 19 April 2002) is a Spanish judoka.

She was born in the Catalan city of Lleida, Spain, to Japanese father, Go Tsunoda, and a French mother, Céline Roustant, who both practised judoka.

[2][3] She was a bronze medalist at 2020 Judo Grand Prix Tel Aviv in January 2020.

She won the 70kg category at 2023 Judo Grand Slam Paris in February 2023.

[11][12] She was a bronze medalist at the 2024 European Judo Championships in Zagreb in May 2024 in the Women's 70 kg.