| 3rd National Assembly of Cambodia | |
| Election: | 27 July 2003 |
| Term Start: | 27 September 2003 |
| Term End: | 27 July 2008 |
| Membership1: | 123 |
| Chamber1 Leader1 Type: | President |
| Chamber1 Leader1: | Norodom Ranariddh (2003–06) Heng Samrin (2006–08) |
| Chamber1 Leader2 Type: | First Vice President |
| Chamber1 Leader2: | Heng Samrin (2003–06) Nguon Nhel (2006–08) |
| Chamber1 Leader3 Type: | Second Vice President |
| Chamber1 Leader3: | Nguon Nhel (2003–06) Say Chhum (2006–08) |
Members of the third National Assembly (Central Khmer: រដ្ឋសភាអាណត្តិទី៣) were elected on 27 July 2003.
| Party | MPs | Of total | ||||||
|---|---|---|---|---|---|---|---|---|
| Cambodian People's Party |
| 59.35% | ||||||
| 21.14% | |||||||
| 19.51% | |||||||
| Total | 123 | 100% | ||||||
Cambodian People's Party
FUNCINPEC
Sam Rainsy Party
| Constituency | Seats | Members | |
|---|---|---|---|
| Banteay | 6 | ||
| Nheb Bunchin | |||
| Battambang | 8 | Sar Kheng | |
| 18 | Heng Samrin | ||
| Math Ly | |||
| Im Sothy | |||
| Yos Son | |||
| Thak Lany | |||
| Kampong Chhnang | 4 | Kong Sam Ol | |
| Kampong Speu | 6 | ||
| Kampong Thom | 6 | Nguon Nhel | |
| Poa Try | |||
| Sok Pheng | |||
| 6 | Ney Pena | ||
| Kandal | 11 | Hun Sen | |
| Chhay Than | |||
| Norodom Sirivudh | |||
| Kratié | 3 | ||
| Chhan Saphan | |||
| Mondulkiri | |||
| Phnom Penh | 12 | Tioulong Saumura | |
| Yim Sovann | |||
| Sok Soty | |||
| Sim Ka | |||
| Preah Vihear | |||
| Prey Veng | 11 | ||
| Nhim Vanda | |||
| Sisowath Santha | |||
| Pursat | 4 | Suy Sem | |
| Ratankiri | Bou Thang | ||
| Siem Reap | 6 | Tea Banh | |
| Stung Treng | |||
| Svay Rieng | 5 | Men Sam An | |
| Takéo | 8 | ||
| Kep | |||
| Oddar Meanchey Province | |||
| Total | 123 | ||