Dempster is a surname of English and Scottish provenance, traditionally associated with the British Isles and, in particular, Scotland. The name is an occupational surname, indicating an ancestor who held a judicial office and who was known, in the medieval period, as a judge or arbiter.

The etymology of the name traces back to Old English. The root “dempstere” and its variants, such as “dem‑stre”, mean “judge” or “arbiter”. In the context of the Scottish court system, a dempster was a judge of a parliament, shire, or baron-bailie. Consequently the surname signified the person responsible for making legal decisions and settling disputes within a barony or a shire.

The earliest recorded spelling of the family name appears in the late thirteenth century. One Haldam de Emester or Deemester of Perthshire is documented in 1296, within the Calendar of Documents relating to Scotland of the reign of King John Balliol (1292‑1296). Subsequent contemporary evidence includes Andrew Dempstar, who in 1360 granted the lands of Menmuir to the Priory of Restennot, and in 1364 witnessed a Brechin document in the Registrum Episcopatus Brechinensis; Robert Demster was bailie of Forfar in 1361, and Andrew Dempstar is recorded as having taken part in the Assize of the Marches of Woodwrae in 1388.

In the early seventeenth century, Thomas Dempster (1579‑1625), a notable scholar and historian, was appointed Professor of Civil Law at Pisa and was knighted by Urban V. Though primarily a man of letters, his background illustrates the continued recognition of the Dempster name through the ages.

Geographically, the name is most commonly found in Scotland, particularly in the areas of East Lothian and Montrose in Angus, where local government and judicial offices have long been associated with the Dempster family. It is also prevalent in the North East of England, in counties such as Cumberland, Yorkshire, and Lincolnshire, as well as in Northern Ireland, especially in County Antrim and County Tipperary. Over mountainous periods, the surname has crossed the Atlantic, with significant population in the United States; states such as Illinois, Ohio, Missouri and Kansas record the highest concentrations of Dempsters, particularly in the mid‑west.

Variants of the surname, all derived from the same occupational origin, include Dampster, Denpster, Dempsey, Demspey, Dempsy, Demspee, Tempser, Tempster, Dimpster, Dimpsey and Dimsby. While Dempsey sometimes reflects an Irish adaptation, especially in Northern Ireland and the United States, the core meaning—referring to a judicial figure—remains consistent across the surname’s different spellings.

Thus, the Dempster surname encapsulates a long‑standing legacy of legal authority and civic responsibility in the British Isles, a lineage that has continued to appear in legal and scholarly contexts to the present day.

Typical given names associated with the Dempster surname

Male

  • Alan
  • Andrew
  • David
  • James
  • John
  • Mark
  • Paul
  • Robert
  • Stephen
  • William

Female

  • Angela
  • Christine
  • Elizabeth
  • Jacqueline
  • Jane
  • Karen
  • Kathleen
  • Louise
  • Margaret
  • Mary
  • Sarah
  • Susan

Similar and related surnames

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

How to communicate the surname Dempster in...

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There are approximately 4,053 people named Dempster in the UK. That makes it roughly the 2,306th most common surname in Britain. Around 62 in a million people in Britain are named Dempster.

Surname type: Occupational name

Origin: Celtic

Region of origin: British Isles

Country of origin: Scotland

Religion of origin: Christian

Language of origin: Gaelic

The Genealogist - UK census, BMDs and more online

Famous people named Dempster

  • John Dempster - Football player and manager
  • William Dempster - (1876 to 1964)
  • Rebecca Dempster - Football player
  • Elizabeth Dempster - Scottish sculptor (1909 to 1987)
  • Jocky Dempster - Scottish football player
  • Jim Dempster - Transplant surgeon (1918 to 2008)
  • Thomas Dempster - Scottish philologist, historian, poet and etruscologist (1579 to 1625)
  • Charlotte Louisa Hawkins Dempster - Novelist and essayist (1835 to 1913)
  • James Dempster - Football player (1896 to 1)

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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