2003 IAAF World Indoor Championships – Men's 4 × 400 metres relay
The men's 4 x 400 metres relay event at the 2003 IAAF World Indoor Championships was held on March 15–16.
Medalists
Note: The United States originally won the gold medal in 3:04.09, but were disqualified after Young admitted to the use of banned substances in 2004.
Results
Heats
Qualification: First 2 teams of each heat plus the next 2 fastest advance to the [|final].| Rank | Heat | Nation | Athletes | Time | Notes |
| 1 | James Davis, Derrick Brew, Milton Campbell, Jerome Young | Q, Doping | |||
| 1 | 1 | Leroy Colquhoun, Danny McFarlane, Kemel Thompson, Michael Blackwood | 3:06.46 | Q | |
| 2 | 1 | Mark Hylton, Jared Deacon, Timothy Benjamin, Cori Henry | 3:06.60 | q, SB | |
| 3 | 2 | Oleg Mishukov, Dmitriy Golovastov, Andrey Rudnitskiy, Aleksandr Usov | 3:08.71 | Q | |
| 4 | 2 | Rafał Wieruszewski, Artur Gąsiewski, Marcin Marciniszyn, Piotr Rysiukiewicz | 3:16.10 | Q | |
| 2 | Salvador Rodríguez, Daniel Ruiz, Alberto Martínez, Artzai Morante | ||||
| 2 | Troy McIntosh, Avard Moncur, Carl Oliver, Timothy Munnings | ||||
| 1 | Paul Brizzel, Gary Ryan, Paul McKee, David McCarthy |