2009 Asian Athletics Championships – Women's 4 × 100 metres relay
The women's 4 × 100 metres relay event at the 2009 Asian Athletics Championships was held at the Guangdong Olympic Stadium on November 12–14.
Medalists
* Athletes who participated in heats only.
Results
Heats
| Rank | Heat | Nation | Athletes | Time | Notes |
|---|---|---|---|---|---|
| 1 | 2 |  Japan |
Asuka Terada, Chisato Fukushima, Mayumi Watanabe, Momoko Takahashi | 44.34 | Q |
| 2 | 1 |  Thailand |
Jintara Seangdee, Phatsorn Jaksuninkorn, Juthamas Tawoncharoen, Nongnuch Sanrat | 44.90 | Q |
| 3 | 2 |  South Korea |
Lee Sun-ae, Kim Ji-eun, Kim Ha-na, Kim Cho-rong | 45.96 | Q |
| 4 | 1 |  Vietnam |
Nguyen Thi Tham, Le Ngoc Phuong, Do Thi Ly, Vu Thi Huong | 46.04 | Q |
| 5 | 1 |  Chinese Taipei |
Liao Ching-hsien, Chuang Shu-chuan, Chen Shu-chuan, Lin Yi-chun | 46.04 | Q |
| 6 | 1 |  India |
Mandeep Kaur, Sowjanya Karnatapu, Premachandram Kanchana Priya, Sharadha Narayana | 46.51 | q |
| 7 | 1 |  Hong Kong |
Lam On Ki, Leung Hau Sze, Wan Kin Yee, Hui Man Li Ng | 46.52 | q |
| 2 |  China |
Tao Yujia, Liang Qiuping, Jiang Lan, Chen Jue | DQ | [1] | |
| 2 |  Sri Lanka |
Priyadharshani, Achala Shalika Dias, Shashiprabha Jayasinghe, Pemila Priyadharshani Delapalage | DNF |
Final
| Rank | Lane | Team | Name | Time | Notes |
|---|---|---|---|---|---|
 |
6 | Japan |
Maki Wada, Chisato Fukushima, Mayumi Watanabe, Momoko Takahashi | 43.93 | |
 |
3 | Thailand |
Jintara Seangdee, Phatsorn Jaksuninkorn, Juthamas Tawoncharoen, Nongnuch Sanrat | 44.55 | |
 |
4 | South Korea |
Lee Sun-ae, Kim Ji-eun, Kim Ha-na, Kim Cho-rong | 45.46 | |
| 4 | 5 | Vietnam |
Nguyen Thi Tham, Le Ngoc Phuong, Do Thi Ly, Vu Thi Huong | 45.55 | |
| 5 | 8 | Chinese Taipei |
Liao Ching-hsien, Chuang Shu-chuan, Chen Shu-chuan, Lin Yi-chun | 45.81 | |
| 6 | 2 | Hong Kong |
Lam On Ki, Leung Hau Sze, Wan Kin Yee, Chan Ho Yee | 46.45 | |
| 7 | India |
Premachandram Kanchana Priya, Nidhi, Jyothi Hiriyur Manjunath, Sharadha Narayana | DQ | [2] |