Japan is hosting the 2026 Asian Games in the Aichi Prefecture and Nagoya from 19 September to 4 October 2026.
Japan is expected to field more than 900 athletes which is larger than the delegation in the 2022 Asian Games which had 772 athletes.
Medalists
| style="text-align:left; width:78%; vertical-align:top;"| The following Japan competitors won medals at the Games.