Show ContentsGuglielmo History, Family Crest & Coats of Arms

The name Guglielmo came from the Latin personal name Guglielmo or Guilielmus, which is derived from the personal name William.

Early Origins of the Guglielmo family

The surname Guglielmo was first found in Pesaro, anciently Pisaurum, a city and seaport of the Marches and capital of the province of Pesaro and Urbino.

Early History of the Guglielmo family

This web page shows only a small excerpt of our Guglielmo research. Another 62 words (4 lines of text) covering the years 1229, 1573, 1624, 1655, 1698, 1710 and 1793 are included under the topic Early Guglielmo History in all our PDF Extended History products and printed products wherever possible.

Guglielmo Spelling Variations

In comparison with other European surnames, Italian surnames have a surprising number of forms. They reflect the regional variations and the many dialects of the Italian language, each with its own distinctive features. For example, in Northern Italy the typical Italian surname suffix is "i", whereas in Southern Italy it is "o". Additionally, spelling changes frequently occurred because medieval scribes and church officials often spelled names as they sounded rather than according to any specific spelling rules. The spelling variations in the name Guglielmo include Guglielmi, Guglielmo, Di Guglielmo, Guglielmelli, Guglielmetti, Guglielmini, Guglielmino, Guglielmotti, Guglielmucci, Guglielmoni, Guglielmone, Ghielmi, Gilelmi, Gelmi, Gelmo, Gelmetti and many more.

Early Notables of the Guglielmo family

Prominent among members of the family was

  • another Alessandro Guglielmi was Governor of Spoleto and an ambassador to various courts around Italy. Pietro Telmoni Guglielmoni was a respected doctor in 1624 in Novara. Later individuals were Pietr...

Guglielmo Ranking

In the United States, the name Guglielmo is the 13,051st most popular surname with an estimated 2,487 people with that name. 1


United States Guglielmo migration to the United States +

Analysis of immigration records indicates that some of the first North American immigrants bore the name Guglielmo or a variant listed above:

Guglielmo Settlers in United States in the 19th Century
  • Alfonso Guglielmo, aged 25, who landed in America, in 1892
  • Andrea Guglielmo, aged 35, who landed in America from Palermo, Italy, in 1895
  • Angelo Guglielmo, aged 41, who settled in America, in 1896
  • Angelo Guglielmo, aged 26, who immigrated to the United States, in 1897
Guglielmo Settlers in United States in the 20th Century
  • Angelo Guglielmo, aged 18, who immigrated to the United States from Calagiano, Italy, in 1910
  • Antonino Guglielmo, aged 29, who immigrated to the United States from Messian, Sicily, in 1910
  • Agostino Guglielmo, aged 18, who landed in America from Melfi, Italy, in 1911
  • Adolfo Guglielmo, aged 1, who landed in America from Castroregio, Italy, in 1912
  • Annita Guglielmo, aged 3, who landed in America from Trapani, Sicily, in 1912
  • ... (More are available in all our PDF Extended History products and printed products wherever possible.)

Contemporary Notables of the name Guglielmo (post 1700) +

  • Jennifer Guglielmo, American writer, historian and associate professor at Smith College
  • Thomas A. Guglielmo, American contemporary historian
  • William Guglielmo Niederland (1904-1993), German-American psychoanalyst and a pioneer in the scholarly field of psychogeography
  • Anthony "Tonny" Guglielmo, American Republican politician, Delegate to Republican National Convention from Connecticut, 1988 (alternate), 2008; Member of Connecticut State Senate 35th District, 1993-2002 2
  • Dudley Anthony Guglielmo (1909-2005), American Louisiana Insurance Cmmissioner (1964 to 1972)
  • Giovanni Di Guglielmo (1886-1961), Brazilian-born Italian hematologist, best known for the discovery of acute erythroid leukemia
  • Niccolo Guglielmo Alforae, French engraver of the Baroque period, active in Rome
  • Guglielmo Epifani (1950-2021), Italian trade unionist and politician, Secretary of the Democratic Party (2013)
  • Guglielmo Spinello (b. 1941), Italian silver medalist men's light heavyweight at the 1972 Summer Olympics
  • Guglielmo Inglese (1892-1962), Italian actor, voice actor, radio personality and playwright


  1. "What are the 5,000 Most Common Last Names in the U.S.?". NameCensus.com, https://namecensus.com/last-names/
  2. The Political Graveyard: Alphabetical Name Index. (Retrieved 2016, January 20) . Retrieved from http://politicalgraveyard.com/alpha/index.html


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