2016 FINA World Swimming Championships (25 m) – 4 × 50 metre mixed freestyle relay

The 4 × 50 metre mixed freestyle relay competition of the 2016 FINA World Swimming Championships (25 m) was held on 7 December 2016.

Records
Prior to the competition, the existing world and championship records were as follows.

Heats
The heats were held at 11:24.

Final
The final was held at 20:29.