| Event: | Men's 400 metres T53 |
| Games: | 2023 |
| Venue: | Mario Recordón Athletics Training Center |
| Dates: | November 23 |
| Competitors: | 6 |
| Nations: | 3 |
| Win Value: | 51.10 |
| Win Label: | Winning time |
| Gold: | Ariosvaldo Fernandes |
| Goldnoc: | BRA |
| Silver: | Phillip Croft |
| Silvernoc: | USA |
| Bronze: | Robert Hunt |
| Bronzenoc: | USA |
| Prev: | 2019 |
| Next: | 2027 |
The men's T53 400 metres competition of the athletics events at the 2023 Parapan American Games was held on November 23 at the Mario Recordón Athletics Training Center within the Julio Martínez National Stadium of Santiago, Chile.[1]
Prior to this competition, the existing world and Pan American Games records were as follows:
| World record | 46.11 | Paris, France | July 11, 2023 | ||
| Parapan American Games record | 48.91 | Toronto, France | August 14, 2015 | ||
| Americas record | 46.22 | Paris, France | July 11, 2023 |
All times shown are in seconds.
| KEY: | bgcolor=ccffcc align=center | q | bgcolor=ccffcc align=center | Q | Qualified | PR | Parapan Games record | NR | National record | SB | Seasonal best | DQ | Disqualified |
The results were as follows:[2]
| Rank | Lane | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|
| 6 | 51.10 | ||||
| 3 | 52.23 | SB | |||
| 5 | 52.48 | SB | |||
| 4 | 7 | 54.48 | |||
| 5 | 4 | DQ | |||
| 6 | 8 | DQ | |||