Gillett is a surname of English origin, found throughout the British Isles and beyond. Its roots can be traced back to the medieval given name Giles, which in turn derives from the Greek name Aegidius, meaning “shield” or “protection.” The suffix ‑ett is a diminutive, so Gillett historically signified “young Giles” or “little Giles” and was often used as a patronymic to denote the descendants of a man named Giles or Aegidius.

The earliest documentary evidence of the name appears in the Assize Rolls of Yorkshire, where a witness is recorded as Peter Gyllot in 1260. This early spelling illustrates how the name evolved through variations such as Gyllot, Gillot, and Gillett, reflecting the fluid spelling practices of medieval scribes. The name was introduced into England by the Normans after 1066, along with other diminutives of Giles such as Gillet and Gillot.

Throughout the Middle Ages, Giles acquired considerable popularity, in part due to the veneration of St. Giles, a 7th‑century Provencal hermit. The Greek Aegidius originally meant “young goat” or “kid” and was symbolic of a protector, “shield‑bearer of the goatskin”. In parallel, the element Gilbert—a Germanic name meaning “bright pledge”—also produced diminutives such as Gillot. Consequently, the surname Gillett can be seen as a convergence of patronymic traditions arising from both names.

Variations of the surname are numerous, a consequence of phonetic spelling in different regions. Common forms include Gillett, Gillet, Gillette, Gillyatt, Gilyot, Jillett, and Jellett. The English‑speaking world recognises many of these spellings as distinct surnames, yet genealogical research shows a shared origin.

In England, Gillett has been most prominently recorded in Devon, though it is now widely dispersed across the United Kingdom, with significant concentrations around London. Outside the British Isles the name has spread to the United States, Canada, and Australia through migration, often with an increased number of variants such as Gillett, Gillett‑Smith, or Gillett‑Taylor. In the United States, populations bearing the name are generally small, but slightly larger numbers appear in California, Michigan, and Ohio.

Overall, the surname Gillett reflects a complex blend of Greek linguistic heritage, Norman‑influenced diminutive forms, and medieval patronymic practices, resulting in a name that has endured for over nine centuries while adapting to diverse cultural and linguistic contexts.

Typical given names associated with the Gillett surname

Male

  • Andrew
  • David
  • James
  • John
  • Mark
  • Michael
  • Paul
  • Peter
  • Robert
  • Simon
  • Stephen

Female

  • Barbara
  • Deborah
  • Elizabeth
  • Emma
  • Jean
  • Margaret
  • Nicola
  • Patricia
  • Rebecca
  • Sarah
  • Susan

Similar and related surnames

Related and similar names are generated algorithmically based on the spelling, and may not necessarily share an etymology.

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There are approximately 5,977 people named Gillett in the UK. That makes it roughly the 1,586th most common surname in Britain. Around 92 in a million people in Britain are named Gillett.

Surname type: Diminutive

Origin: English

Region of origin: British Isles

Country of origin: England

Religion of origin: Christian

Language of origin: English

The Genealogist - UK census, BMDs and more online

Famous people named Gillett

  • Aden Gillett - Actor
  • Charlie Gillett - Radio rpesenter and musicologist (1942 to 2010)
  • Simon Gillett - Football player
  • Sarah Gillett - Diplomat
  • John Gillett - (1925 to 1995)

Names and descriptions courtesy of Wikipedia, and may contain errors. This is not intended to be an exhaustive list of every famous person with this name.

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