Athletics at the 2013 Summer Universiade – Men's 400 metres
The men's 400 metres event at the 2013 Summer Universiade was held on 7–9 July.
Medalists
Results
Heats
Qualification: First 3 in each heat and 6 best performers advanced to the semifinals.| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 3 | Anderson Henriques | 46.63 | Q | |
| 2 | 5 | Brian Gregan | 46.68 | Q | |
| 3 | 1 | Pedro Luiz de Oliveira | 46.69 | Q | |
| 4 | 4 | Tyler Harper | 46.70 | Q | |
| 5 | 1 | Nicholas Maitland | 46.76 | Q | |
| 6 | 4 | Wayde van Niekerk | 46.77 | Q | |
| 7 | 5 | Jacques de Swardt | 47.04 | Q | |
| 8 | 2 | Vladimir Krasnov | 47.14 | Q | |
| 9 | 1 | Benjamin Ayesu-Attah | 47.15 | Q | |
| 10 | 5 | Mathew Lynch | 47.28 | Q | |
| 11 | 4 | Kengo Yamasaki | 47.32 | Q | |
| 12 | 3 | Jun Kimura | 47.42 | Q | |
| 13 | 1 | Mehmet Güzel | 47.48 | q | |
| 14 | 6 | Emmanuel Tugumisirize | 47.52 | Q | |
| 15 | 5 | Shaquille Dill | 47.71 | q | |
| 16 | 6 | Yavuz Can | 47.93 | Q | |
| 17 | 2 | Ernst Narib | 48.11 | Q | |
| 18 | 3 | Rafał Omelko | 48.17 | Q | |
| 19 | 4 | Mothusi Bolele | 48.30 | q | |
| 20 | 6 | Martins Zacests | 48.42 | Q, PB | |
| 21 | 2 | Alexander Carew | 48.67 | Q | |
| 22 | 6 | Mohd Arif Zulhilmi Bin Alet | 48.89 | q | |
| 23 | 4 | Kannathasan Subramaniam | 49.12 | q | |
| 24 | 5 | Jesús Herrera | 49.20 | q | |
| 25 | 6 | Rauno Kunnapuu | 49.22 | ||
| 26 | 1 | Ibrahima Mbengue | 49.32 | ||
| 27 | 6 | Oumar Dia | 49.43 | ||
| 28 | 1 | Geoffrey Akena | 49.48 | ||
| 29 | 3 | Henry Stevens-Carty | 49.49 | ||
| 30 | 1 | Mohammed Abubakari | 49.51 | ||
| 31 | 2 | Felix Attafoe | 49.61 | ||
| 32 | 5 | Ramzi Naim | 49.76 | ||
| 33 | 3 | Matthew Croker | 49.84 | ||
| 34 | 5 | Vezokuhle Ndlovu | 50.01 | ||
| 35 | 2 | Madushanka Dinesh | 50.17 | ||
| 36 | 4 | Ao Ioeng Ka Hou | 50.31 | ||
| 37 | 5 | Rodolfo Edmond Taylor | 51.19 | ||
| 38 | 3 | Moussargue Tchoumgoyo | 53.12 | ||
| 1 | Vladislavs Prosmickis | FS | |||
| 2 | Nijel Amos | ||||
| 2 | Mohamed Kamara | ||||
| 2 | Peter Kiprotich | ||||
| 3 | Youssef Zeineddine | ||||
| 4 | Fleury Oboba | ||||
| 6 | Reginald Makunere | ||||
| 6 | Noah Akwu |
Semifinals
Qualification: First 2 in each heat and 2 best performers advanced to the final.| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 2 | Brian Gregan | 45.91 | Q | |
| 2 | 1 | Rafał Omelko | 45.94 | Q, PB | |
| 3 | 1 | Pedro Luiz de Oliveira | 45.96 | Q | |
| 4 | 2 | Vladimir Krasnov | 46.03 | Q | |
| 5 | 3 | Nicholas Maitland | 46.04 | Q | |
| 6 | 3 | Anderson Henriques | 46.17 | Q | |
| 7 | 3 | Emmanuel Tugumisirize | 46.19 | q | |
| 8 | 1 | Tyler Harper | 46.26 | q | |
| 9 | 2 | Wayde van Niekerk | 46.39 | ||
| 10 | 2 | Yavuz Can | 46.65 | ||
| 11 | 1 | Jacques de Swardt | 46.68 | ||
| 12 | 1 | Jun Kimura | 46.84 | ||
| 13 | 2 | Kengo Yamasaki | 46.90 | ||
| 14 | 3 | Benjamin Ayesu-Attah | 47.11 | ||
| 15 | 1 | Mathew Lynch | 47.16 | ||
| 16 | 3 | Mehmet Güzel | 47.41 | ||
| 17 | 2 | Shaquille Dill | 47.90 | ||
| 18 | 3 | Ernst Narib | 47.96 | ||
| 19 | 2 | Kannathasan Subramaniam | 48.34 | ||
| 20 | 3 | Alexander Carew | 48.47 | ||
| 21 | 2 | Martins Zacests | 48.58 | ||
| 22 | 1 | Mothusi Bolele | 49.11 | ||
| 23 | 3 | Jesús Herrera | 49.70 | ||
| 1 | Mohd Arif Zulhilmi Bin Alet |
Final
| Rank | Lane | Name | Nationality | Time | Notes |
| 8 | Vladimir Krasnov | 45.49 | SB | ||
| 7 | Anderson Henriques | 45.50 | |||
| 5 | Nicholas Maitland | 45.63 | PB | ||
| 4 | 6 | Rafał Omelko | 45.69 | PB | |
| 5 | 3 | Brian Gregan | 45.83 | ||
| 6 | 4 | Pedro Luiz de Oliveira | 45.96 | ||
| 7 | 1 | Emmanuel Tugumisirize | 46.63 | ||
| 8 | 2 | Tyler Harper | 46.97 |