Swimming at the 2015 SEA Games – Women's 4 × 100 metre medley relay

The women's 4 × 100 metre medley relay competition of the swimming events at the 2015 SEA Games was held on 10 June at the OCBC Aquatic Centre in Singapore.

Schedule
All times are Singapore Standard Time (UTC+08:00)

Records
The following records were established during the competition:

Final

 * Source: Final Results

The final was held on 10 June.