Coal town or Kolis 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.
Less common today
Coleby isn't in the latest US Top 1000. It last peaked at #4,103 in 1999.
South African professional rugby player
Australian actor
US births per 5-year period, 1990βpresent (SSA data).