# Swimming at the 1984 Summer Olympics – Men's 4 × 100 metre freestyle relay

The final of the men's 4 × 100 metre freestyle relay event at the 1984 Summer Olympics was held in Los Angeles, California, on August 2, 1984. 23 teams participated in the heats, with the eight fastest qualifying for the final.

## Records

Prior to this competition, the existing world and Olympic records were as follows.
| World record | United States (USA) Chris Cavanaugh (50.13) Robin Leamy (50.10) David McCagg (49.89) Rowdy Gaines (49.14) | 3:19.26 | Guayaquil, Ecuador | 5 August 1982 |
| Olympic record | United States (USA) David Edgar (52.69) John Murphy (52.04) Jerry Heidenreich (50.78) Mark Spitz (50.90) | 3:26.42 | Munich, West Germany | 28 August 1972 |
The following new world and Olympic records were set during this competition.
| Date | Event | Name | Nationality | Time | Record |
| 2 August | Heat 3 | Neil Brooks (50.36) Greg Fasala (50.35) Michael Delany (50.03) Mark Stockwell (49.20) | Australia | 3:19.94 | OR |
| 2 August | Final | Chris Cavanaugh (50.83) Mike Heath (49.60) Matt Biondi (49.67) Rowdy Gaines (48.93) | United States | 3:19.03 | WR |

## Results
### Heats

Rule: The eight fastest teams advance to the final (Q).
| Rank | Heat | Lane | Nation | Swimmers | Time | Notes |
| 1 | 3 | 5 | Australia | Neil Brooks (50.36) Greg Fasala (50.35) Michael Delany (50.03) Mark Stockwell (49.20) | 3:19.94 | Q, OR |
| 2 | 3 | 4 | United States | Matt Biondi (50.50) Chris Cavanaugh (49.94) Tom Jager (49.89) Robin Leamy (49.81) | 3:20.14 | Q |
| 3 | 2 | 4 | Sweden | Rikard Milton (51.80) Michael Söderlund (50.98) Mikael Örn (50.89) Per Johansson (50.19) | 3:23.86 | Q, NR |
| 4 | 3 | 6 | Great Britain | David Lowe (51.51) Roland Lee (51.37) Paul Easter (51.03) Richard Burrell (50.68) | 3:24.59 | Q |
| 5 | 2 | 5 | France | Stéphan Caron (50.83) Laurent Neuville (50.84) Dominique Bataille (51.77) Bruno Lesaffre (51.24) | 3:24.68 | Q, NR |
| 6 | 1 | 4 | West Germany | Dirk Korthals (51.31) Alexander Schowtka (50.90) Nicolai Klapkarek (51.27) Michael Gross (51.21) | 3:24.69 | Q, NR |
| 7 | 3 | 8 | Italy | Marcello Guarducci (51.49) Raffaele Franceschi (51.51) Metello Savino (51.00) Marco Colombo (51.37) | 3:25.37 | Q, NR |
| 8 | 3 | 3 | Canada | Sandy Goss (51.82) Alex Baumann (51.14) Blair Hicken (51.23) Levente Mady (51.75) | 3:25.94 | Q |
| 9 | 1 | 5 | Switzerland | Dano Halsall (51.68) Stéfan Voléry (50.24) Thierry Jacot (52.33) Roger Birrer (52.36) | 3:26.61 | |
| 10 | 2 | 1 | Brazil | Cyro Delgado (52.10) Jorge Fernandes (51.39) Djan Madruga (52.44) Ronald Menezes (51.40) | 3:27.33 | |
| 11 | 2 | 3 | Netherlands | Edsard Schlingemann (51.94) Peter Drost (52.69) Frank Drost (51.59) Hans Kroes (51.38) | 3:27.60 | |
| 12 | 1 | 3 | Venezuela | Alberto Mestre (51.18) Alberto José Umana (53.13) Rafael Vidal (53.15) Jean-Marie François (52.78) | 3:30.24 | |
| 13 | 2 | 2 | Japan | Hiroshi Sakamoto (52.31) Shigeo Ogata (52.22) Taihei Saka (52.85) Satoshi Sumida (53.07) | 3:30.45 | |
| 14 | 2 | 6 | Puerto Rico | Fernando Cañales (51.90) Miguel Figueroa (53.63) Antonio Portela (51.92) Rafael Gandarillas (53.21) | 3:30.66 | |
| 15 | 1 | 6 | China | Mu Lat (52.21) Feng Dawei (52.81) Chen Qin (53.31) Shen Jianqiang (52.49) | 3:30.82 | |
| 16 | 1 | 2 | Mexico | José Medina (54.12) Ramiro Estrada (52.39) César Sánchez (54.05) Carlos Romo (53.30) | 3:33.86 | |
| 17 | 3 | 2 | Singapore | Ang Peng Siong (51.18) Oon Jin Teik (54.53) David Lim Fong Jock (54.70) Oon Jin Gee (54.22) | 3:34.63 | |
| 18 | 1 | 1 | Jamaica | Andrew Phillips (52.97) Deryck Marks (54.44) Allan Marsh (52.97) Gordon Scarlett (54.49) | 3:34.87 | |
| 19 | 3 | 7 | Turkey | Kemal Sabri Özün (53.50) İhsan Sabri Özün (53.94) Ahmed Nakkas (54.59) Gökhan Attaroglu (54.51) | 3:36.54 | |
| 20 | 1 | 7 | Virgin Islands | Erik Rosskopf (55.40) Brian Farlow (57.77) Collier Woolard (55.76) Scott Newkirk (54.56) | 3:43.49 | |
| 21 | 3 | 1 | Guatemala | Rodrigo Leal (58.39) Fernando Marroquin (58.33) Roberto Granados (58.56) Ernesto-José Degenhart (56.90) | 3:52.18 | |
| 22 | 2 | 8 | Honduras | Salvador Corelo (58.20) Juan José Piro (59.92) David Palma (58.66) Rodolfo Torres (59.09) | 3:55.87 | |
| | 2 | 7 | Egypt | Mohamed Youssef (53.23) Sharif Nour (55.36) Ahmed Eid Ahmed Said | DSQ | |

### Final

| Rank | Lane | Nation | Swimmers | Time | Notes |
| | 5 | United States | Chris Cavanaugh (50.83) Mike Heath (49.60) Matt Biondi (49.67) Rowdy Gaines (48.93) | 3:19.03 | WR |
| | 4 | Australia | Greg Fasala (51.00) Neil Brooks (49.36) Michael Delany (50.26) Mark Stockwell (49.06) | 3:19.68 | OC |
| | 3 | Sweden | Thomas Lejdström (51.29) Bengt Baron (50.83) Mikael Örn (51.28) Per Johansson (49.29) | 3:22.69 | NR |
| 4 | 7 | West Germany | Dirk Korthals (51.11) Andreas Schmidt (51.48) Alexander Schowtka (50.91) Michael Gross (49.48) | 3:22.98 | NR |
| 5 | 6 | Great Britain | David Lowe (51.38) Roland Lee (51.17) Paul Easter (50.82) Richard Burrell (50.24) | 3:23.61 | NR |
| 6 | 2 | France | Stéphan Caron (51.03) Laurent Neuville (51.38) Dominique Bataille (51.17) Bruno Lesaffre (51.05) | 3:24.63 | NR |
| 7 | 8 | Canada | David Churchill (51.73) Blair Hicken (51.13) Alex Baumann (51.28) Sandy Goss (50.56) | 3:24.70 | NR |
| 8 | 1 | Italy | Marcello Guarducci (51.53) Marco Colombo (51.21) Metello Savino (51.54) Fabrizio Rampazzo (50.69) | 3:24.97 | NR |