| Wellsyke Wood | |
| Coordinates: | 53.1592°N -0.1631°W |
| Map: | Lincolnshire |
| County: | Lincolnshire |
| Country: | England |
| Elevation: | 22 |
Wellsyke Wood is a small woodland on Roughton Moor to the east of the village of Woodhall Spa, Lincolnshire.
At the eastern end of the wood there is a small spring which feeds one of the two main sources of The Sewer (also known as Woodhall Sewer), a small stream that is a tributary of the River Witham at Kirkstead.