Gillies Pow 1723 Geog. Coll. i, 304 [the western limit of NBH, separating land of Carpow on the west and Mugdrum on the east]
Gillies Burn 1866 OS 6 inch 1st edn [PER sheet]
? pn Gillies + Sc burn or Sc pow
The earlier form of the name contains Sc pow ‘slow-moving burn’, which must refer to its mouth on the tidal Firth of Tay (cf Pow of Lindores 3 km to the east).
The burn forms the county boundary (FIF/PER) for all of its course, whence its local name ‘the County Burn’. It also forms part of the marches of Easter Clunie ANY PER, Carpow ANY PER and Mugdrum NBH, ANY.
This place-name appeared in printed volume 4