Japan fielded a full squad of four gymnasts each in both the men's and women artistic gymnastics events, respectively. The men's team secured a berth in the team all-around by winning a bronze at the 2018 World Artistic Gymnastics Championships in Doha, Qatar, while the women's team claimed one of the nine spots available at the 2019 World Artistic Gymnastics Championships in Stuttgart, Germany. The women's team was named on 15 May 2021 at the conclusion of the NHK Cup. The full men's team was announced on 6 June 2021.