| Honorific-Prefix: | His Excellency |
| Keo Puth Rasmey | |
| Native Name: | Central Khmer: កែវ ពុទ្ធរស្មី |
| Office: | President of the FUNCINPEC Party |
| Term Start: | 2006 |
| Term End: | 2011 |
| Predecessor: | Norodom Ranariddh |
| Successor: | Nhek Bun Chhay |
| Birth Date: | 1 October 1952 |
| Birth Place: | Kampong Cham, Cambodia, French Indochina |
| Spouse: | Norodom Arunrasmy (m. 1991) |
| Party: | FUNCINPEC |
Keo Puth Rasmey (Central Khmer: កែវ ពុទ្ធរស្មី; born 1 October 1952[1]) is a Cambodian politician. On 19 October 2006 he was appointed to lead Funcinpec, the royalist party of Cambodia, replacing former leader Norodom Ranariddh. He is the son-in-law of Norodom Sihanouk, former king of Cambodia, and is of Cambodian descent.[2] When his wife Arunrasmey resigned as the First Vice President of FUNCINPEC in March 2015,[3] Keo was appointed to replace her as the First Vice President.[4]