St Martin's is a village and civil parish in Shropshire, England, just north of Oswestry and east of Chirk, Wales on the England–Wales border.

Later the A5, the London-Shrewsbury-Holyhead trunk road was constructed by Thomas Telford through the parish of St Martin's, crossing into Wales via the bridge at Chirk Bank.

By 1848 the Chester to Ruabon railway line had been extended south to Shrewsbury, but only one station, Preesgweene (Welsh: Preesgwyn) (later known as Weston Rhyn), was built in St Martin's parish.

The collieries at Ifton, Chirk Bank, Quinta, Trehowell, Moreton Hall and Preesgweene were, geologically, an extension of the Denbighshire coalfield.

Francis Williams, Editor of the Daily Herald and Governor of the BBC, (later life peer Baron Francis-Williams) born at St Martin's.