The men's 4×100 metre freestyle relay event at the 1968 Olympic Games took place 17 October.[1] The relay featured teams of four swimmers each swimming two lengths of the 50 m pool freestyle.
4 fastest teams from each heat advance to the final
Heat 1
| Rank | width=100 | Nation ! | width=150 | Swimmers ! | Time | Notes |
|---|---|---|---|---|---|---|
| 1 | Leonid Ilyichov (54.4) Sergey Gusev (54.7) Viktor Mazanov (54.6) Semyon Belits-Geiman (54.1) | 3:37.8 | Q | |||
| 2 | Glen Finch (57.5) George Smith (53.2) Ralph Hutton (54.8) Sandy Gilchrist (54.8) | 3:40.3 | Q | |||
| 3 | Mike Turner (55.5) Bobby McGregor (55.0) David Hembrow (55.8) Tony Jarvis (54.1) | 3:40.4 | Q | |||
| 4 | Kunihiro Iwasaki (55.8) Masayuki Osawa (54.5) Satoru Nakano (55.9) Teruhiko Kitani (55.6) | 3:41.8 | Q | |||
| 5 | José Antonio Chicoy (55.1) Juan Fortuny (56.3) Juan Martinez (56.2) Diego Martel (55.1) | 3:42.7 | ||||
| 6 | Lester Eriksson (55.7) Ingvar Eriksson (55.9) Bo Westergren (56.1) Gunnar Larsson (56.2) | 3:43.9 | ||||
| 7 | Julio Arango (56.0) Tomas Becerra (59.7) Federico Sicard (58.8) Ricardo González (57.0) | 3:51.5 | ||||
| 8 | Salvador Vilanova (55.9) Rubén Guerrero (1:05.9) José Alvarado (1:02.4) Ernesto Durón (1:04.1) | 4:08.3 |
Heat 2
| Rank | width=100 | Nation ! | width=150 | Swimmers ! | Time | Notes |
|---|---|---|---|---|---|---|
| 1 | William Johnson (54.5) David Johnson (53.1) Michael Wall (54.0) Don Schollander (53.8) | 3:35.4 | Q | |||
| 2 | Greg Rogers (55.3) Robert Cusack (55.7) Bob Windle (53.9) Mike Wenden (53.1) | 3:38.0 | Q | |||
| 3 | Peter Schorning (55.1) Wolfgang Kremer (54.8) Olaf, Baron von Scholing (54.9) Hans Faßnacht (55.4) | 3:40.2 | Q | |||
| 4 | Frank Wiegand (55.4) Horst-Günter Gregor (54.4) Udo Poser (55.0) Lothar Gericke (55.7) | 3:40.5 | Q | |||
| 5 | Péter Lázár (56.0) István Szentirmay (56.0) Csaba Csatlós (55.9) Gábor Kucsera (54.5) | 3:42.4 | ||||
| 6 | Salvador Ruíz (57.1) Mario Santibáñez (55.7) Eduardo Alanís (57.8) Rafaél Cal (55.5) | 3:46.1 | ||||
| 7 | Jorge González (55.0) Michael Goodner (1:00.4) Gary Goodner (55.6) José Ferraioli (56.0) | 3:47.0 | ||||
| 8 | Roosevelt Abdulgafur (59.7) Alman Jaamani (54.8) Tony Asamali (57.9) Luis Ayesa (55.4) | 3:47.8 |
| Rank | Nation | Swimmers | Time | Notes | |
|---|---|---|---|---|---|
| Zac Zorn (53.4) Stephen Rerych (52.8) Mark Spitz (52.7) Ken Walsh (52.8) | 3:31.7 | ||||
| Semyon Belits-Geiman (54.7) Viktor Mazanov (54.0) Georgijs Kuļikovs (52.9) Leonid Ilyichov (52.6) | 3:34.2 | ||||
| Greg Rogers (55.2) Robert Cusack (54.1) Bob Windle (53.7) Mike Wenden (51.7) | 3:34.7 | ||||
| 4 | Mike Turner (55.5) Bobby McGregor (54.2) David Hembrow (55.4) Tony Jarvis (53.3) | 3:38.4 | |||
| 5 | Frank Wiegand (54.3) Horst-Günter Gregor (54.3) Udo Poser (55.4) Lothar Gericke (54.8) | 3:38.8 | |||
| 6 | Peter Schorning (54.5) Wolfgang Kremer (55.2) Olaf, Baron von Scholing (54.7) Hans Faßnacht (54.6) | 3:39.0 | |||
| 7 | Glen Finch (55.3) George Smith (55.3) Ralph Hutton (54.2) Sandy Gildchrist (54.4) | 3:39.2 | |||
| 8 | Kunihiro Iwasaki (55.3) Masayuki Osawa (55.4) Satoru Nakano (55.9) Teruhiko Kitani (54.9) | 3:41.5 |