Japan at the 2023 World Athletics Championships

Japan competed at the 2023 World Athletics Championships in Budapest, Hungary, from 19 to 27 August 2023.

Results
Japan entered 76 athletes.


 * Key
 * Q = Qualified for the next round
 * q = Qualified for the next round as a fastest loser or, in field events, by position without achieving the qualifying target
 * NR = National record
 * PB = Personal best
 * SB = Season best
 * N/A = Round not applicable for the event

Men

 * Track and road events


 * Field events


 * Combined events – Decathlon

Women

 * Track and road events


 * Field events