| Chey Chettha I | |
| Succession: | King of Cambodia |
| Reign: | 1584–1595 |
| Predecessor: | Satha I |
| House: | Varman Dynasty |
| Father: | Satha I |
| Mother: | Queen Chakrapati |
| Full Name: | Samdach Brhat Maha Upasaka Maharaja Bupati Brhat Rajankariya Brhat Jaya Jathadhiraja Ramadipati Parama Bupati |
| Birth Date: | 1575 |
| Birth Place: | Cambodia |
| Death Date: | 1595 (aged 19–20) |
| Death Place: | Stung Treng |
| Religion: | Buddhism |
Chey Chettha I (Central Khmer: ព្រះបាទជ័យជេដ្ឋាទី១, ; 1575 - 1595) was a king of Cambodia who ruled from 1584 to 1595.
Chey Chettha was the second son of Satha I. He was appointed as heir apparent when he was eleven. He was crowned by his father in 1584.[1]
In 1594, Cambodia was attacked by Siam. After the Siamese army reached Lovek, Chey Chettha assumed his uncle Soryopor the direct command of the defenses.[2]
Chey Chetta fled the capital with his father, Satha, first to Srey Santhor, then to Stung Treng. He died there in 1595 without an heir.