2012 European Athletics Championships – Men's 400 metres
The men's 400 metres at the 2012 European Athletics Championships was held at the Helsinki Olympic Stadium on 27, 28 and 29 June.Medalists
Records
Schedule
Results
Round 1
First 4 in each heat and 4 best performers advance to the Semifinals.
| Rank | Heat | Lane | Name | Nationality | Time | Note |
| 1 | 1 | 7 | Brian Gregan | | 45.63 | Q, PB |
| 2 | 2 | 5 | Richard Buck | | 45.83 | Q |
| 3 | 1 | 5 | Pavel Maslák | | 45.87 | Q |
| 4 | 3 | 5 | Donald Sanford | | 45.90 | Q |
| 5 | 2 | 6 | Jānis Leitis | | 45.92 | Q, PB |
| 5 | 4 | 7 | Yannick Fonsat | | 45.92 | Q |
| 7 | 4 | 6 | Marco Vistalli | | 45.98 | Q |
| 8 | 3 | 7 | Marcell Deák-Nagy | | 46.19 | Q |
| 9 | 3 | 8 | Krasimir Braikov | | 46.20 | Q, SB |
| 10 | 5 | 8 | Mehmet Güzel | | 46.21 | Q, SB |
| 11 | 1 | 4 | Kacper Kozłowski | | 46.30 | Q |
| 12 | 4 | 8 | Eric Krüger | | 46.33 | Q |
| 13 | 4 | 5 | Jente Bouckaert | | 46.37 | Q |
| 14 | 2 | 8 | Johan Wissman | | 46.43 | Q |
| 15 | 5 | 3 | Marcin Marciniszyn | | 46.47 | Q |
| 16 | 3 | 6 | Daniel Němeček | | 46.61 | Q |
| 17 | 2 | 3 | Antoine Gillet | | 46.62 | Q |
| 18 | 2 | 4 | Lorenzo Valentini | | 46.64 | q |
| 19 | 4 | 4 | Jan Tesař | | 46.75 | q |
| 20 | 5 | 7 | Nick Ekelund-Arenander | | 46.78 | Q |
| 21 | 2 | 1 | Piotr Wiaderek | | 46.83 | q |
| 22 | 1 | 3 | Mark Ujakpor | | 47.07 | Q |
| 23 | 2 | 2 | Roberto Briones | | 47.20 | q |
| 24 | 5 | 1 | Lev Mosin | | 47.39 | Q |
| 25 | 5 | 4 | Hakim Ibrahimov | | 47.47 | |
| 26 | 4 | 2 | Sorin Vatamanu | | 47.50 | |
| 27 | 3 | 3 | Halit Kiliç | | 47.91 | |
| 28 | 4 | 3 | Trausti Stefánsson | | 48.17 | |
| 29 | 2 | 7 | Kristijan Efremov | | 48.80 | |
| 30 | 5 | 6 | Jonathan Lavers | | 50.23 | |
| 31 | 5 | 2 | Fabian Haldner | | 50.77 | |
| 1 | 2 | Yavuz Can | | | |
| 1 | 6 | Ville Wendelin | | | |
| 1 | 8 | Brent LaRue | | | |
| 3 | 2 | Luke Lennon-Ford | | | |
| 3 | 4 | Samuel García | | | |
| 5 | 5 | Teddy Venel | | | |
Semifinals
First 2 in each heat and 2 best performers advance to the Final.
| Rank | Heat | Lane | Name | Nationality | Time | Note |
| 1 | 3 | 4 | Pavel Maslák | | 45.66 | Q |
| 2 | 1 | 5 | Marcell Deák-Nagy | | 45.68 | Q, SB |
| 3 | 3 | 6 | Brian Gregan | | 45.76 | Q |
| 4 | 1 | 3 | Donald Sanford | | 45.77 | Q |
| 5 | 1 | 6 | Yannick Fonsat | | 45.78 | q |
| 6 | 1 | 4 | Marcin Marciniszyn | | 45.88 | q |
| 6 | 3 | 5 | Jānis Leitis | | 45.88 | =NR |
| 8 | 2 | 5 | Marco Vistalli | | 46.01 | Q |
| 9 | 2 | 3 | Richard Buck | | 46.13 | Q |
| 10 | 2 | 7 | Johan Wissman | | 46.35 | |
| 11 | 2 | 1 | Piotr Wiaderek | | 46.45 | |
| 12 | 2 | 6 | Mehmet Güzel | | 46.46 | |
| 13 | 3 | 3 | Kacper Kozłowski | | 46.54 | |
| 14 | 1 | 7 | Nick Ekelund-Arenander | | 46.57 | |
| 15 | 2 | 4 | Krasimir Braikov | | 46.62 | |
| 16 | 3 | 8 | Eric Krüger | | 46.68 | |
| 17 | 3 | 2 | Lev Mosin | | 46.77 | |
| 18 | 1 | 2 | Lorenzo Valentini | | 46.96 | |
| 19 | 3 | 7 | Antoine Gillet | | 47.15 | |
| 20 | 1 | 1 | Jan Tesař | | 47.27 | |
| 21 | 3 | 1 | Mark Ujakpor | | 47.27 | |
| 22 | 2 | 2 | Roberto Briones | | 47.56 | |
| 1 | 8 | Jente Bouckaert | | | |
| 2 | 8 | Daniel Němeček | | | |
Final
