2022 World Athletics Championships – Mixed 4 × 400 metres relay

The mixed 4 × 400 metres relay at the 2022 World Athletics Championships was held at the Hayward Field in Eugene on 15 July 2022.

The winning margin was 0.08 seconds which as of 2024 is the only time this mixed relay was won by less than two seconds at these championships.

Records
Before the competition records were as follows:

The following records were matched or set at the competition:

Qualification standard
The standard to qualify automatically for entry was to finish in the first 12 at 2021 World Relays, completed by 4 top lists' teams.

Schedule
The event schedule, in local time (UTC−7), was as follows:

Heats
The first three in each heat (Q) and the next two fastest (q) qualify for the final.