Crosswell (Welsh: Ffynnon-groes) is a hamlet on the B4329 road in the community of Eglwyswrw, Pembrokeshire, Wales, in the parish of Meline.

[4] The name may originate with Cwmgloyne, a mansion near Hen-llys, and the home of the antiquarian Thomas Lloyd who "dying as a bachelor, left his estate by will to Maurice Williams".

[5] Now a private dwelling called Ty Ffynnongroes (Crosswell House), the former inn was Grade II listed in 1997.

[6][7] A stone, single-lane bridge crosses the River Nevern and adjacent water meadows to the north of the hamlet.

[3] The bridge is named Pontgynon (also recorded as Pantgynon or Pontcynon) and has existed at least since the early 17th century, but has been rebuilt since.