4 x 400 m Relay, Women
| Competition | 2021 South-East Asian Games (SEA Games) |
|---|---|
| Venue |
Hanoi
 VIE
|
| Held | — |
| Status | Medal |
| Competitors | 12 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Vietnam | VIE |
3:37.99 | ||
| Hoàng Thị Ngọc | — | ||||
| Quách Thị Lan | — | ||||
| Nguyễn Thị Hằng | — | ||||
| Nguyễn Thị Huyền | — | ||||
| 🥈 | Thailand |  THA |
3:42.90 | ||
| Sukanya Chanchaona | — | ||||
| Supanich Poolkerd | — | ||||
| Patcharaporn Jongkraijak | — | ||||
| Benny Nontanam | — | ||||
| 🥉 | Philippines |  PHI |
3:43.26 | ||
| Eloisa Luzon | — | ||||
| Bernalyn Bejoy | — | ||||
| Maureen Schrijvers | — | ||||
| Robyn Brown | — |