Puncheston (Welsh: Cas-mael or Casmael)[2] is a village, parish[3] and community in Pembrokeshire, southwest Wales.

[4] A map of 1578 shows the parish as Castle Male, presumably a phonetic spelling of the Welsh name by the English mapmaker.

[5] Lewis's Topographical Dictionary of 1844 gives 326 inhabitants (the 1849 edition gives 255)[6] for the parish, which includes the village and a number of outlying residences and farms.

Lewis surmises that the original name was Castell Mael, deriving from an ancient encampment of which there are remains.

A railway passed through the parish in the 19th and 20th centuries, with a halt at the village.