The women's 4 × 100 metres relay event at the 2005 Asian Athletics Championships was held in Incheon, South Korea on September 4.
Results edit
| Rank | Team | Name | Time | Notes |
|---|---|---|---|---|
 |
 Thailand |
Sangwan Jaksunin, Orranut Klomdee, Juthamas Thavoncharoen, Nongnuch Sanrat | 44.18 | |
 |
 China |
Jiang Zhiying, Liang Yi, Ni Xiaoli, Qin Wangping | 44.24 | |
 |
 Japan |
Tomoko Ota, Sakie Nobuoka, Yuka Sato, Rina Fujimaki | 44.85 | |
| 4 |  Hong Kong |
Leung Shuk Wa, Pang Hok Man, Wan Kin Yee, Chan Ho Yee | 46.61 | |
| 5 |  South Korea |
Kim Ha-na, Lee Ji-eun, Choi Ju-young, Lee Yeon-kyoung | 47.01 |