Duffws was the Festiniog Railway's (FR) second passenger station in Blaenau Ffestiniog, then in Merionethshire, now in Gwynedd, Wales.

What it is a corruption of is unclear, with some sources saying it comes from "Diffwys"[4] (meaning 'steep slope or mountainside') - the pronunciation of both words is similar - others saying it is related to "Diphwys"[5] and most making no comment.

It joined the first steam-hauled passenger service in Britain to use tracks of less than standard gauge, with the line carrying a quarter of a million people in its first year of operation.

The initial station was built almost at a right angle to the running lines, with its tracks forming a very short branch adjacent to the north side of Church Street.

[15] This process continued until 1962[16] with the eventual removal of all lines through the Duffws site when the quarries either closed or switched to using lorries to take slates to customers.