Athletics at the 2020 Summer Paralympics – Men's 400 metres T13

The men's 400 metres T13 event at the 2020 Summer Paralympics in Tokyo, took place between 1 and 2 September 2021.

Records
Prior to the competition, the existing records were as follows:

Heats
Heat 1 took place on 1 September 2021, at 20:19:

Heat 2 took place on 1 September 2021, at 20:27:

Final
The final took place on 2 September 2021, at 9:54: