| 4th National Assembly of Cambodia | |
| Election: | 27 July 2008 |
| Term Start: | 24 September 2008 |
| Term End: | 28 July 2013 |
| Before: | 3rd |
| Membership1: | 123 |
| Chamber1 Leader1 Type: | President |
| Chamber1 Leader2 Type: | First Vice President |
| Chamber1 Leader3 Type: | Second Vice President |
| Chamber1 Leader3: | Say Chhum (2008–12) Khuon Sodary (2012–13) |
Members of the fourth National Assembly (Central Khmer: រដ្ឋសភាអាណត្តិទី ៤) were elected on 27 July 2008. The Cambodian People's Party (CPP) was the largest party with 90 of 123 seats. With five parties, it is the most multi-partisan Assembly.
| Party | MPs | Of total | ||||||
|---|---|---|---|---|---|---|---|---|
| Cambodian People's Party |
| 73.17% | ||||||
| Sam Rainsy Party |
| 21.14% | ||||||
| 2.44% | |||||||
| 1.63% | |||||||
| 1.63% | |||||||
| Total | 123 | 100% | ||||||
| Constituency | Seats | Members | |
|---|---|---|---|
| Banteay | 6 | ||
| An Sum | |||
| Yont Tharo | |||
| Battambang | 8 | Sar Kheng | |
| Chheang Vun | |||
| Chuonh Sochhay | |||
| Tes Heanh | |||
| Muy Chat | |||
| Chiv Cata | |||
| 18 | Heng Samrin | ||
| Chin Kimsreng | |||
| Van Sengly | |||
| Khek Sam On | |||
| Chem Savay | |||
| Im Run | |||
| Chay Borin | |||
| Tres Sarom | |||
| Nguon Sim An | |||
| Mao Monyvann | |||
| Cheam Channy | |||
| Kimsour Phirith | |||
| Kem Sokha | |||
| You Hockry | |||
| Kampong Chhnang | 4 | Kong Sam Ol | |
| Keo Sosak | |||
| Ker Chanmony | |||
| Khy Vandeth | |||
| Kampong Speu | 6 | ||
| Im Savoeun | |||
| Kampong Thom | 6 | Nguon Nhel | |
| Nhem Thavy | |||
| Sik Bun Hok | |||
| Men Sothavarin | |||
| Kuch Moly | |||
| 6 | Ney Pena | ||
| Som Chen | |||
| Nim Chantara | |||
| Saleh Sen | |||
| Kandal | 11 | Hun Sen | |
| Zakaryya Adam | |||
| Ouk Damry | |||
| Chea Chamroeun | |||
| Chan Cheng | |||
| Khim Laky | |||
| Pot Peou | |||
| Kratié | 3 | Troeung Thavy | |
| Katoe Toyab | |||
| Long Ry | |||
| Mondulkiri | |||
| Phnom Penh | 12 | ||
| Hou Sry | |||
| Krouch Sam An | |||
| Lork Kheng | |||
| Chiep Sivorn | |||
| Ho Vann | |||
| Ly Srey Vyna | |||
| Preah Vihear | |||
| Prey Veng | 11 | ||
| Long Sakhan | |||
| Sok Eysan | |||
| Min Sean | |||
| Kong Bora | |||
| Sao Rany | |||
| Pursat | 4 | Ly Narun | |
| Sman Teath | |||
| Em Ponna | |||
| Sary Kosal | |||
| Ratankiri | Bou Thang | ||
| Siem Reap | 6 | Tea Banh | |
| Peou Savoeun | |||
| Sam Heang | |||
| Chhim Ma | |||
| Stung Treng | |||
| Svay Rieng | 5 | Men Sam An | |
| Chhun Sarim | |||
| Sao Leng | |||
| Takéo | 8 | ||
| Nin Saphon | |||
| Prak Thuch | |||
| Chau Sophon | |||
| Yean Hunly | |||
| Um Sokhan | |||
| Tok Vanchan | |||
| Kep | An He | ||
| Pailin | Ich Sarou | ||
| Oddar Meanchey Province | |||
| Total | 123 | ||