See main article: 2023 World Para Swimming Championships.
The freestyle relay events at the 2023 World Para Swimming Championships will be held at the Manchester Aquatics Centre between 31 July and 6 August. One will be held solely for S14 (intellectual disability) athletes; the other three will be an aggregate points based system to allow swimmers from multiple classifications to be eligible.
| Mixed freestyle relay (S14)[1] | William Ellard Jessica-Jane Applegate Poppy Maskill Jordan Catchpole | Jack Ireland Madeleine McTernan Ruby Storm Benjamin Hanse | Joao Pedro Brutos de Oliveira Ana Karolina Soares de Oliveira Beatriz Borges Carneiro Gabriel Bandeira | |
| Mixed 4 x 50m freestyle relay (20 points)[2] [3] | Guo Jincheng Lu Dong He Shenggao Yuan Weiyi | Anna Hontar Dmytro Vynohradets Iryna Poida Oleksandr Komarov | ||
| Mixed freestyle relay (34 points) | ||||
| Mixed freestyle relay (49 points) |
The race was held as a straight final on 3 August.
The applicable records on entry for this event were as follows:
| Record | Team | Time |
|---|---|---|
| World record | 3:40.63 | |
| Championship record | 3:42.21 |
| Rank | Nation | Result | Notes | |
|---|---|---|---|---|
William Ellard Jessica-Jane Applegate Poppy Maskill Jordan Catchpole | 3:42.42 | |||
Jack Ireland Madeleine McTernan Ruby Storm Benjamin Hanse | 3:45.58 | |||
Joao Pedro Brutos de Oliveira Ana Karolina Soares de Oliveira Beatriz Borges Carneiro Gabriel Bandeira | 3:51.12 | |||
| 4 | Tang Wai Lok Cheung Tsun Lok Chan Yui Lam Cheung Ho Ying | 3:56.61 | ||
| 5 | Kinoshita Aira Matsuda Anku Serizawa Mikaka Murakami Shunya | 4:02.18 |