| Ela River | |
| Pushpin Map: | New Hampshire#USA |
| Pushpin Map Size: | 250 px |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | New Hampshire |
| Subdivision Type3: | County |
| Subdivision Name3: | Strafford |
| Subdivision Type4: | Towns |
| Subdivision Name4: | New Durham, Farmington |
| Length: | 10.6miles |
| Source1: | Coldrain Pond |
| Source1 Location: | New Durham |
| Source1 Coordinates: | 43.4508°N -71.1428°W |
| Source1 Elevation: | 668feet |
| Mouth: | Cochecho River |
| Mouth Location: | Farmington |
| Mouth Coordinates: | 43.3889°N -71.07°W |
| Mouth Elevation: | 278feet |
The Ela River is a 10.6adj=midNaNadj=mid[1] river in eastern New Hampshire in the United States. It is a tributary of the Cochecho River, part of the Piscataqua River watershed leading to the Atlantic Ocean.
The river begins at Coldrain Pond in New Durham, New Hampshire, 4miles east of Lake Winnipesaukee. Flowing south through Club Pond, the river turns southeast and descends to Farmington, where it joins the Cochecho. New Hampshire Route 11 parallels the river for most of its southeasterly course.