Athletics at the 1968 Summer Olympics – Men's 4 × 400 metres relay
These are the official results of the men's 4 × 400 metres relay event at the 1968 Summer Olympics in Mexico City, Mexico.
Medalists
Final
Heats
Heat 1
| Place | Nation | Athletes | Time |
| 1 | Vince Matthews Ron Freeman Larry James Lee Evans | 3:00.71 | |
| 2 | Charles Asati Munyoro Nyamau Naftali Bon Daniel Rudisha | 3:00.84 | |
| 3 | Sergio Ottolina Giacomo Puosi Furio Fusi Sergio Bello | 3:04.93 | |
| 4 | Hartmut Schwabe Dieter Fromm Wolfgang Müller Michael Zerbes | 3:07.00 | |
| 5 | Rolando Gómez José L'Oficial Radhamés Mora David Soriano | 3:19.42 |
Heat 2
| Place | Nation | Athletes | Time |
| 1 | Stanisław Grędziński Jan Balachowski Jan Werner Andrzej Badeński | 3:03.02 | |
| 2 | Martin Winbolt-Lewis Colin Campbell Dave Hemery John Sherwood | 3:03.67 | |
| 3 | Mamman Makama David Ejoke Musa Dogon Yaro Anthony Egwunyenga | 3:05.78 | |
| 4 | Amadou Gakou Daour M'baye Guèye Papa M'Baye N'Diaye Mamadou Sarr | 3:06.94 |
Heat 3
| Place | Nation | Athletes | Time |
| 1 | Helmar Müller Gerhard Hennige Manfred Kinder Martin Jellinghaus | 3:03.90 | |
| 2 | George Simon Euric Bobb Ben Cayenne Edwin Roberts | 3:04.55 | |
| 3 | Jacques Carette Gilles Bertould Jean-Pierre Boccardo Christian Nicolau | 3:04.69 | |
| 4 | Carlos Martínez Eddy Téllez Miguel Olivera Rodobaldo Díaz | 3:05.28 | |
| 5 | Víctor Patíñez Raúl Dome Víctor Maldonado José Jacinto Hidalgo | 3:07.65 | |
| 6 | Melesio Piña Salvador Medina Carlos Castro Francisco Sardo | 3:08.19 | |
| 7 | Ross MacKenzie Brian MacLaren Bill Crothers Wes Brooker | 3:09,70 |