Badminton di Sukan Asia Tenggara 2005 diadakan di PhilSports Arena (formerly ULTRA Arena) at the Philippine Sports Commission Complex in Pasig City, Philippines. Participants competed for 5 gold medals in the acara perseorangan and 2 gold medals in the acara berpasukan.
Kejuaraan
| Acara | Emas | Perak | Gangsa |
|---|---|---|---|
| Perseorangan lelaki: |  Sony Dwi Kuncoro
|
Simon Santoso
|
 Lee Chong Wei Muhd Hafiz Hashim
|
| Perseorangan wanita: | Adriyanti Firdasari
|
Wong Mew Choo
|
 Li Li  Salakjit Ponsana
|
| Beregu lelaki: | Markis Kido Hendra Setiawan
|
Luluk Hadiyanto Alvent Yulianto Chandra
|
Choong Tan Fook Wong Choong Hann Chan Chong Ming Koo Kien Keat
|
| Beregu wanita: | Wong Pei Tty Chin Eei Hui
|
Jo Novita Greysia Polii
|
Jiang Yanmei Li Yujia Saralee Thungthongkam Satinee Jankrajangwong
|
| Beregu campuran: | Nova Widianto Lilyana Natsir
|
Anggun Nugroho Yunita Tetty
|
Hendry Kurniawan Saputra Li Yujia Koo Kien Keat Wong Pei Tty
|