| Honorific-Prefix: | The Honorable |
| Edwin Marino Co Ongchuan | |
| Office: | Governor of Northern Samar |
| Term Start: | June 30, 2019 |
| Predecessor: | Jose L. Ong, Jr. |
| Office2: | Member of the Philippine House of Representatives from Northern Samar's 2nd District |
| Term Start2: | June 30, 2016 |
| Term End2: | June 30, 2019 |
| Predecessor2: | Emil L. Ong |
| Successor2: | Jose L. Ong, Jr. |
| Birth Date: | 3 March 1968 |
| Birth Place: | Northern Samar, Philippines |
| Nationality: | Filipino |
| Party: | PFP (2024-present) |
| Otherparty: | NUP (until 2024) |
| Spouse: | Blesila Ongchuan |
Edwin Marino Co Ongchuan is a Filipino politician from the province of Northern Samar. He is currently serving as the governor of the province being first elected in 2019.[1] He was a member of the House of Representatives of the Philippines from 2016 to 2019.[2] [3]