Coal town or Koli's settlement
A variant of the English surname Colby, derived from Old Norse elements. It typically refers to a village belonging to a person named Koli, or a 'dark settlement' associated with coal or charcoal production.
Fewer than 5 boys were named Coleby in 2025.
South African professional rugby player
Australian actor
US births per 5-year period, 1990–present (SSA data).
