Selattyn (Welsh: Sylatyn) is a village and former civil parish, now in the parish of Selattyn and Gobowen, in the Shropshire district, in the ceremonial county of Shropshire, England. It is on the England–Wales border, close to Oswestry. In 1961 the parish had a population of 1830. On 1 April 1967 the parish was abolished to form "Selattyn and Gobowen", part also went to Whittington.The village is near Offa's Dyke, which bounds the parish on the west. The parish includes the townships of Upper and Lower Porkington (which was adapted into Welsh as Brogyntyn), and also the hamlet of Hengoed (Welsh for 'old forest'). The topography is undulating and well timbered, with soils of various qualities; 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 therefore also a part of England in the 16th century. E. G. Ravenstein's look at the geographical extent of the Welsh language in 1878, from a lecture he gave in that year, reported Welsh services and Welsh being spoken in Selattyn and the surrounding area.