The Women's 4 x 400 metres relay event at the 2006 IAAF World Indoor Championships was held on March 12.
| width=200 valign=top | Tatyana Levina Natalya Nazarova Olesya Forsheva Natalya Antyukh Yulia Gushchina | width=200 valign=top | Debbie Dunn Tiffany Williams Monica Hargrove Mary Wineberg Kia Davis | width=200 valign=top | Natallia Solohub Anna Kozak Yulyana Yushchanka Ilona Usovich |
* Runners who participated in the heats only and received medals.
Qualification: First 2 teams of each heat (Q) plus the next 2 fastest (q) advance to the final.
| Rank | Heat | Nation | Athletes | Time | Notes | |
|---|---|---|---|---|---|---|
| 1 | 1 | 3:25.91 | Q | |||
| 2 | 2 | 3:28.47 | Q, NR | |||
| 3 | 2 | 3:29.44 | Q | |||
| 4 | 2 | 3:29.59 | q, NR | |||
| 5 | 1 | 3:30.03 | Q, NR | |||
| 6 | 1 | 3:30.18 | q, SB | |||
| 7 | 1 | 3:34.47 | ||||
| 8 | 2 | 3:35.80 | SB |
| Rank | Nation | Athletes | Time | Notes | |
|---|---|---|---|---|---|
| Tatyana Levina, Natalya Nazarova, Olesya Forsheva, Natalya Antyukh | 3:24.91 | ||||
| Debbie Dunn, Tiffany Williams, Monica Hargrove, Mary Wineberg | 3:28.63 | SB | |||
| Natallia Solohub, Anna Kozak, Yulyana Yushchanka, Ilona Usovich | 3:28.65 | ||||
| 4 | Grażyna Prokopek, Monika Bejnar, Marta Chrust-Rożej, Małgorzata Pskit | 3:28.95 | NR | ||
| 5 | Shellene Williams, Novlene Williams, Moya Thompson, Allison Beckford | 3:29.54 | NR | ||
| 6 | Melanie Purkiss, Jennifer Meadows, Emma Duck, Helen Karagounis | 3:29.70 |