It is a Spanish surname of Aragonese origin. Name given to the regrowth of the branches of the oak tree.
REBOLLO: Salamanca, you fence oak.
REBOLLO: Aragon, camphorated, plant perennial.
REBOLLO: Outbreak of the roots of the Pyrenean.
Rebollo: stone or singing of the roads and alistanos with few edges and rounded tendency tilling fields.