Sheskin (Irish: An Seisceann), traditionally divided into Sheskinmor and Sheskinbeg, is a townland in the north of County Monaghan in Ireland.

In the 17th century, as the Ulster Plantation got underway, Sheskin and the other uplands were common lands for the lower lying districts around Scotstown, and so would have been cleared, but have remained fairly open.

Sheskin would have been classified as a townland during the Ulster Plantation in the 17th century, and probably would have been assigned from a previously existing tate of the same name and geographic area.

It is understood that Sheskin is the location where Potato blight was first identified in Monaghan, the disease that ultimately led to the Irish Famine.

Corblonog, the townland just to the east of Sheskin, still has a location known as Porridge Hill, where the Williamson family provided gruel to those who needed it during the famine.