| Oranje Nassau I | |
| Pushpin Map: | Netherlands |
| Pushpin Label: | Oranje Nassau I |
| Coordinates: | 50.8931°N 5.9697°W |
| Place: | Heerlen |
| Subdivision Type: | Province |
| State/Province: | Limburg |
| Country: | Netherlands |
| Owner: | Oranje Nassau Mijnen |
| Products: | Coal |
| Amount: | 31,978,000 tonnes |
The Oranje Nassau I was a Dutch coal mine located in Heerlen. The mine was in operation from 1899 until 1974.The Oranje Nassau I was the oldest and second largest of the four Oranje Nassau Mijnen-mines. Close to the mine there were several coal washing plants and a large electric power station. The mine dominated the skyline of Heerlen with its two tall chimneys nicknamed "Lange Jan" and "Lange Lies".