| Long Datih | |
| Coordinates: | 3.45°N 115.1667°W |
| Pushpin Map: | Borneo |
| Pushpin Label Position: | right |
| Subdivision Type: | Country |
| Subdivision Name: |  Malaysia |
| Subdivision Type1: | State |
| Elevation M: | 416 |
Long Datih is a Christian Kelabit longhouse settlement in the mountainous interior of Sarawak, Malaysia. It lies approximately 576.1km (358miles) east-north-east of the state capital Kuching.
The village converted to Christianity in the 1940s; a visitor in 1960 described how, as well as Sunday services in the village chapel, prayers were held in each longhouse at the start of each day.
Neighbouring settlements include: