Selattyn is the name of a village close to Oswestry in Shropshire on the Anglo-Welsh border.

The village, which is considerable, is situated near Offa's Dyke, which bounds the parish on the West. The parish includes the townships of Upper and Lower Porkington, and also the hamlet of Hengoed (Welsh for Old Forest). The surface is undulating and well timbered. The soil is of various qualities, and the substratum abounds with limestone. There are quarries of good building-stone. Close to Selattyn lies the ruined Castle Brogyntyn dating to the 12th Century. The area only became confirmed as part of Shropshire and there also a part of England in the 16th Century.