Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
We don't have any stats on how common this name is. This is probably because it's very rare in the UK.
Region of origin
Country of origin
Language of origin
Religion of origin
Related and similar surnames
The Molley surname in historical dictionaries
Patronymica Britannica (1860)
MOLLEY. A corruption of Mnlloy.