What country did the last name Couch originate from?

Answer 1

The proud and noble English surname of Couch is originally Flemish, bestowed upon an upholsterer, or a maker of beds or couches. They are on record as having held a family seat in Oxfordshire.

Answer 2

The Cornish and Welsh last name Couch was a nickname for a red-haired man, from cough, coch 'red(-haired)'. In England, Couch was an occupational name for a maker of beds or bedding from Middle English, Old French couche 'bed'.

Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4