Japan at the 2019 World Athletics Championships

Japan competed at the 2019 World Championships in Athletics in Doha, Qatar from 27 September to 6 October 2019. The country finished in 8th place in the medal table.

Results

 * Key
 * Note–Ranks given for track events are within the athlete's heat only
 * 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
 * N/A = Round not applicable for the event
 * Bye = Athlete not required to compete in round