Gilby comes from an English surname, a locational name for someone who came from a place called Gilby. The second element comes from Old Norse byr meaning “settlement, farm”, while the first part of the name may be a diminutive of Gilbert (meaning “bright pledge” or “bright hostage”), so essentially meaning “Gilbert’s farm” or “settlement of Gilbert”. It’s also possible that Gilby could be a variant of Kilby, the first element derived from Old English cild (child).

Nicknames: Gil

Origin: Proto-Indo-European



  • Gilbee (English)
  • Gillbee (English)
  • Gillby (English)
  • Gillbey (English)
  • Gilbey (English)



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