Swimming at the 2018 Commonwealth Games – Men's 4 × 100 metre medley relay
The men's 4 × 100 metre medley relay event at the 2018 Commonwealth Games as part of the swimming program took place on 10 April at the Gold Coast Aquatic Centre.
Records
Prior to this competition, the existing world and Commonwealth Games records were as follows.The following records were established during the competition:
| Date | Event | Nation | Swimmers | Time | Record |
| 10 April | Final | Mitch Larkin Jake Packard Grant Irvine Kyle Chalmers | 3:31.04 | GR |
Results
Heats
The heats were held at 11:31.| Rank | Heat | Lane | Nation | Swimmers | Time | Notes |
| 1 | 2 | 4 | Bradley Woodward Matt Wilson David Morgan Jack Cartwright | 3:33.61 | Q | |
| 2 | 2 | 6 | Elliot Clogg James Wilby Jacob Peters David Cumberlidge | 3:36.68 | Q | |
| 3 | 1 | 4 | Stephen Milne Craig Benson Sean Campsie Jack Thorpe | 3:38.79 | Q | |
| 4 | 2 | 5 | Markus Thormeyer Elijah Wall Josiah Binnema Ruslan Gaziev | 3:40.79 | Q | |
| 5 | 2 | 2 | Martin Binedell Michael Houlie Ryan Coetzee Calvyn Justus | 3:42.44 | Q | |
| 6 | 1 | 5 | Conor Ferguson Jamie Graham Jordan Sloan David Thompson | 3:42.99 | Q | |
| 7 | 1 | 2 | Erico Cuna Ludovico Corsini Igor Mogne Denilson da Costa | 3:55.91 | Q | |
| 8 | 2 | 3 | Mathieu Marquet Jonathan Chung Yee Gregory Anodin Bradley Vincent | 4:04.51 | Q | |
| 9 | 1 | 3 | Jordan Gonzalez James Sanderson Aidan Carrol Matt Savitz | 4:08.07 | ||
| 10 | 1 | 6 | Josh Tarere Ashley Seeto Samuel Seghers Leonard Kalate | 4:09.26 |
Final
The final was held at 21:52.| Rank | Lane | Nation | Swimmers | Time | Notes |
| 4 | Mitch Larkin Jake Packard Grant Irvine Kyle Chalmers | 3:31.04 | GR | ||
| 5 | Luke Greenbank Adam Peaty James Guy Ben Proud | 3:31.13 | |||
| 2 | Calvyn Justus Cameron van der Burgh Chad le Clos Brad Tandy | 3:34.79 | |||
| 4 | 3 | Craig McNally Ross Murdoch Mark Szaranek Duncan Scott | 3:35.15 | ||
| 5 | 6 | Markus Thormeyer Elijah Wall Josiah Binnema Yuri Kisil | 3:36.12 | ||
| 6 | 7 | Conor Ferguson Jamie Graham James Brown Jordan Sloan | 3:41.08 | ||
| 7 | 1 | Erico Cuna Ludovico Corsini Igor Mogne Denilson da Costa | 3:52.41 | ||
| 8 | 8 | Bradley Vincent Jonathan Chung Yee Mathieu Marquet Gregory Anodin | 3:57.29 |