The women's 4 × 400 metres relay at the 2024 World Athletics Relays was held at the Thomas Robinson Stadium on 4 and 5 May.

Prior to the competition, the competition records were as follows:[1] Qualification: First 2 of each heat (Q) advance to the final and qualify for the 2024 Olympic Games.

The remaining teams advance into a repechage round, where they get another chance for Olympic qualification.

[2] First 2 of each heat (OG*) qualify for the 2024 Olympic Games.

[3] The final was started on 5 May 2024 on 22:13.