| Origin | |
|---|---|
| Word/name | William |
| Meaning | "son of William" |
| Region of origin | Scotland |
| Other names | |
| Variant form(s) | Williams, Willson, Wilson |
The surname Williamson was first found in the Royal burgh of Peebles, where this predominantly Scottish Clan who are a Sept of Clan Gunn held a Family Seat anciently, although their interests straddled the English Scottish border and they held territories as far south as Keswick in Cumberland.