The surname Gagliardi was first found in Sicily (Italian: Sicilia), the largest island in the Mediterranean Sea and elsewhere in the south of Italy, though it is occasionally found further north. The Guagliardo spelling variation in particular is known to have originated in Sicily, while the variations of the name ending in the letter "i" are more likely from the north.
This web page shows only a small excerpt of our Gagliardi research. Another 61 words (4 lines of text) covering the years 1659, 1647, 1698 and 1762 are included under the topic Early Gagliardi History in all our PDF Extended History products and printed products wherever possible.
John Gagliardi (1926-2018), American football coach, inducted into the College Football Hall of Fame in 2006
Lee Parsons Gagliardi (1918-1998), American federal judge
John Gagliardi (b. 1974), American professional lacrosse player
Frank Gagliardi (1931-2011), American jazz drummer and percussionist
Edward John 'Ed' Gagliardi (b. 1952), American bass player
Sara Elizabeth Gagliardi (b. 1958), American legislator in the U.S. state of Colorado
Patrick M. Gagliardi (b. 1950), American Democratic Party politician, Member of Michigan State House of Representatives 107th District, 1983-98; Delegate to Democratic National Convention from Michigan, 1996 
Filippo Gagliardi (d. 1659), Italian painter of the Baroque period
Achille Gagliardi (1537-1607), Italian ascetic writer and spiritual director
Bernardino Gagliardi (1609-1660), Italian painter of the Baroque period