Gibbon is an English, Irish and Scottish surname with Norman roots.
As an English surname it is derived from the Old French name Giboin or Gibon (ultimately from ancient Germanic Gebawin or Gibo, respectively).
Alternatively, it may also come from the name Gibb.
As an Irish and Scottish surname, it is a variant of McGibbon.
[1] Gibben, Gibbin, and Gibbons are variants of the surname.