| Formerum | |
| Native Name: | Formearum |
| Settlement Type: | Village |
| Pushpin Map: | Netherlands |
| Pushpin Label Position: | left |
| Pushpin Mapsize: | 250 |
| Pushpin Map Caption: | Location in the Netherlands |
| Coordinates: | 53.3894°N 5.3062°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Netherlands |
| Subdivision Type1: | Province |
| Subdivision Name1: | Friesland |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Terschelling |
| Unit Pref: | Metric |
| Population As Of: | 1 January 2017 |
| Population Total: | 211 |
| Population Density Km2: | auto |
| Timezone1: | CET |
| Utc Offset1: | +1 |
| Timezone1 Dst: | CEST |
| Utc Offset1 Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 8894 |
| Area Code Type: | Dialing code |
| Area Code: | 0562 |
Formerum (Western Frisian: Formearum) is a village on Terschelling in the province of Friesland, the Netherlands. It had a population of around 211 in January 2017.[1] The Russian ship Oka 18 sank in 1966 near this village. Until recently her funnel could be seen rising out from the sea. The village boasts a smock mill, the Koffiemolen.
It was the birthplace of the 16th century Dutch Arctic explorer Willem Barentsz.