Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
MABIN
As described in historical dictionaries
Patronymica Britannica (1860)
MABIN. Perhaps from St. Mabyn, a parish in Cornwall, or perhaps the personal name — the same as that borne by the saint to whom the parish was dedicated.