What is the nationality of the surname Kidd?

Answer 1

The Scottish last name Kidd is from a medieval personal name Kid, a variation of Kit, a nickname of Christopher. The English surname Kidd is from Middle English kid(e) 'young goat', an occupational name for a goat herder.

Answer 2

I have found that the proud and noble Scottish Kidd family's motto is "Until it fills the orb!", as well as the fact that they held a family seat in Dundee from very ancient times. The surname may well have derived from the Middle English language word for a young goat, meaning that this may be a nickname-type surname for a person who was energetically kid-like, or it may be an occupationally-derived surname for a herder of goats.