# Swimming at the 2023 Pan American Games – Men's 4 × 100 metre medley relay

The men's 4 × 100 metre medley relay competition of the swimming events at the 2023 Pan American Games were held on October 25, 2023, at the Aquatic Center in Santiago, Chile.

## Records

Prior to this competition, the existing world and Pan American Games records were as follows:
| World record | Ryan Murphy (52.31) Michael Andrew (58.49) Caeleb Dressel (49.03) Zach Apple (46.95) (USA) | 3:26.78 | Tokyo, Japan | August 1, 2021 |
| Pan American Games record | Daniel Carr (53.95) Nic Fink (58.57) Tom Shields (50.40) Nathan Adrian (47.33) (USA) | 3:30.25 | Lima, Peru | August 10, 2019 |

## Results

| KEY: | QA | Qualified for A final | QB | Qualified for B final | GR | Games record | NR | National record | PB | Personal best | SB | Seasonal best |

### Heats

The highest eight scores advance to the final.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 4 | Christopher O'Connor (55.38) Noah Nichols (59.91) Jack Dahlgren (52.34) Cody Carrozza (49.56) | United States | 3:37.19 | Q |
| 2 | 2 | 5 | Gabriel Fantoni (55.01) Raphael Windmuller (1:01.14) Victor Baganha (52.92) Victor Alcara (48.38) | Brazil | 3:37.45 | Q |
| 3 | 1 | 4 | Raben Dommann (55.09) Brayden Taivassalo (1:00.89) Keir Ogilvie (53.89) Edouard Fullum-Huot (49.40) | Canada | 3:39.27 | Q |
| 4 | 2 | 3 | Andy Xianyang (56.49) Andrés Puente (1:01.46) Jorga Iga (52.62) José Cano (51.65) | Mexico | 3:42.22 | Q |
| 5 | 2 | 6 | Anthony Rincón (56.37) Jorge Murillo (1:01.66) Esnaider Reales (54.16) Sebastián Camacho (52.88) | Colombia | 3:45.07 | Q |
| 6 | 1 | 3 | Augstín Hernández (57.55) Juan Bautista Carrocia (1:03.39) Federico Ludueña (54.90) Matías Santiso (50.88) | Argentina | 3:46.72 | Q |
| 7 | 2 | 2 | Edhy Vargas (57.92) Mariano Lazzerini (1:02.34) Benjamín Schnapp (54.62) Elías Ardiles (52.88) | Chile | 3:47.76 | Q |
| 8 | 1 | 6 | Diego Mas (1:00.72) Eric Veit (1:04.08) Jorge Otaiza (53.12) Emil Pérez (51.40) | Venezuela | 3:49.32 | Q |
| 9 | 1 | 5 | Erick Gordillo (58.41) Roberto Bonilla (1:02.91) Christopher Gossmann (56.92) Miguel Vásquez (51.40) | Independent Athletes Team | 3:49.64 | R |
| 10 | 2 | 7 | Lamar Taylor (56.90) Mark-Anthony Thompson (1:06.36) Emmanuel Gadson (56.97) Luke Thompson (53.69) | Bahamas | 3:53.92 | R |
| 11 | 1 | 2 | Carlos Cobos (58.20) Joaquín Vargas (1:15.78) Ricardo Espinosa (58.14) Rafael Ponce (53.11) | Peru | 4:05.23 | |

### Final

The final was held on October 25.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 4 | Jack Aikins (54.00) Jacob Foster (1:00.61) Lukas Miller (51.36) Jonathan Kulow (47.32) | United States | 3:33.29 | |
| | 5 | Guilherme Basseto (54.70) João Gomes Júnior (1:00.45) Vinicius Lanza (53.03) Guilherme Caribé (46.94) | Brazil | 3:35.12 | |
| | 3 | Blake Tierney (54.57) Gabe Mastromatteo (1:00.20) Finlay Knox (52.96) Javier Acevedo (47.99) | Canada | 3:35.72 | |
| 4 | 6 | Diego Camacho (56.31) Miguel de Lara (1:00.18) Jorga Iga (52.46) Andrés Dupont (48.84) | Mexico | 3:37.79 | |
| 5 | 2 | Omar Pinzón (56.04) Jorge Murillo (1:00.78) David Arias (52.82) Juan Morales (50.27) | Colombia | 3:39.91 | NR |
| 6 | 7 | Ulises Saravia (55.19) Gabriel Morelli (1:02.50) Joaquín Piñero (54.88) Guido Buscaglia (49.14) | Argentina | 3:41.71 | |
| 7 | 1 | Edhy Vargas (57.18) Mariano Lazzerini (1:01.35) Benjamín Schnapp (53.82) Eduardo Cisternas (50.76) | Chile | 3:43.11 | |
| 8 | 8 | Winston Rodríguez (59.69) Eric Veit (1:03.92) Jorge Otaiza (52.96) Alberto Mestre (49.29) | Venezuela | 3:45.86 | |