Gilmer
A surname most likely from a medieval Germanic personal name, later associated in English with the Gilbert/Gilbert-derived name family.
The #5,213 most common surname in the United States (2010 Census) — about 1 in every 46,102 Americans shares it.
Etymology
The clearest early dictionary evidence links Gilmer to the wider surname family of Gilbert, suggesting it began as a shortened or altered form of a personal name. Other historical scholarship connects it with Germanic name elements such as "gisel" and "mar" in older Continental forms like Gisalmar or Gilmar, which later produced variants such as Gilmour and, in some spellings, Gilmer. In Irish and Scottish contexts, the name can also appear among Anglicized surnames that were reshaped by English spelling habits, so the exact route may vary by family.
History
19th-century surname dictionaries treat Gilmer as closely related to Gilmour/Gilmore and other names from the same name-stock. One cited English family in the older literature shows Gilmer as a settled hereditary surname in Westmorland by the medieval period, while later records also show the spelling in Ireland and Scotland. Because the spelling is comparatively uncommon, some bearers may descend from different regional spellings that converged on the modern form.
Origin
Regions
Variant spellings
Fun fact
Older onomastic works even glossed Gilmer alongside continental forms like Gilmar and the German modern surname Kilmer, showing how one name could travel and change shape across languages.
From the historical record
“GILLRAY. GILMER. GILMOUR. GILPATRIC. St. Patrick. GILPIN. See Gilbert, xin eminent familj- seated at Kentmerc Ilall, co. West- moreland, temp. King John. B.L.G.”
— Patronymica Britannica: a dictionary of the family names of the United Kingdom