Whorlton Castle is a ruined Norman fortress situated in the North York Moors near Northallerton, North Yorkshire. Originally constructed as a motte-and-bailey stronghold during the early 12th century, the castle was strategically positioned to oversee the important roadway connecting Thirsk and Stokesley. Today, visitors can observe the remnants of its 14th-century gatehouse and explore the earthworks that define this historic site. The ruins provide a window into medieval military engineering and Norman settlement patterns in Yorkshire.