| Event: | Women's 4 × 100 metre medley relay |
| Games: | 2018 |
| Venue: | Gold Coast Aquatic Centre |
| Dates: | 10 April |
| Competitors: | 32 |
| Nations: | 8 |
| Win Value: | 3:54.36 |
| Gold: | Emily Seebohm Georgia Bohl Emma McKeon Bronte Campbell |
| Goldcga: | AUS |
| Silver: | Kylie Masse Kierra Smith Penny Oleksiak Taylor Ruck |
| Silvercga: | CAN |
| Bronze: | Georgia Davies Chloé Tutton Alys Thomas Kathryn Greenslade |
| Bronzecga: | WAL |
| Prev: | 2014 |
| Next: | 2022 |
The women's 4 × 100 metre medley relay event at the 2018 Commonwealth Games was held on 10 April at the Gold Coast Aquatic Centre.
Prior to this competition, the existing world and Commonwealth Games records were as follows.
The following records were established during the competition:
The final was held at 21:43.[1]
| Rank | Lane | Nation | Swimmers | Time | Notes | |
|---|---|---|---|---|---|---|
| 4 | Emily Seebohm (59.52) Georgia Bohl (1:06.85) Emma McKeon (56.42) Bronte Campbell (51.57) | 3:54.36 | GR | |||
| 5 | Kylie Masse (59.02) Kierra Smith (1:06.68) Penny Oleksiak (56.86) Taylor Ruck (52.54) | 3:55.10 | ||||
| 6 | Georgia Davies (1:00.34) Chloé Tutton (1:07.39) Alys Thomas (57.29) Kathryn Greenslade (55.73) | 4:00.75 | ||||
| 4 | 3 | Lizzie Simmonds (1:00.62) Sarah Vasey (1:08.01) Siobhan-Marie O'Connor (58.57) Anna Hopkin (54.47) | 4:01.67 | |||
| 5 | 2 | Kathleen Dawson (1:01.72) Corrie Scott (1:08.33) Keanna MacInnes (1:00.63) Lucy Hope (54.49) | 4:05.17 | |||
| 6 | 8 | Bobbi Gichard (1:01.65) Bronagh Ryan (1:10.09) Helena Gasson (1:00.32) Laticia Transom (55.41) | 4:07.47 | |||
| 7 | 1 | Nathania van Niekerk (1:04.08) Kaylene Corbett (1:11.68) Erin Gallagher (1:00.45) Emma Chelius (55.81) | 4:12.02 | |||
| 8 | 7 | Niamh Robinson (1:07.22) Laura Kinley (1:10.54) Charlotte Atkinson (59.66) Stephanie Brew (1:02.83) | 4:20.25 |