The Honour of Richmond (or Richmondshire) was a feudal barony in what is now mainly North Yorkshire, England. The honour was two tiers below Yorkshire, the middle tier being the North Riding.
Before the honour was created, the land was held by Edwin, Earl of Mercia who died in 1071. The honour was granted to Count Alan Rufus (also known as Alain le Roux) by King William the Conqueror (as a gift of thanks for his services in the Conquest) sometime from after the Domesday Book of 1068 to just after the earl's death in 1071, the date is uncertain.