What are some Italian last names that don't end in vowels?
In north-east Italy there are lots of surnames that don't end in vowels - Benetton, for example. Then there's 'Canalis' - the surname of George Clooney's Italian girlfriend.
Yes, "Gianantonio" is a last name. Specifically, the name combines the first names "Giovanni" and "Antonio." The name "Giovanni" means "John." It often is shortened to "Gianni" or even "Gian" before names that begin with vowels. The name "Antonio" means "Anthony." The pronunciation is "DJYAH-nahn-TOH-nyoh."
Forenames, nicknames and surnames originating in the west and south European countries of France and Italy explain the phrase French and Italian names. Some first names look the same, such as the French Paul, and others different, such as the Italian Paolo ("Paul"), from their English counterparts. Some last names likewise may be recognizable, such as the French Saint-Martin, and others not, such as Azzarà ("fisherman") in Sicily, vis-à-vis their English equivalents.
No, the last name "Trejo" is not Italian. Instead, it is a Spanish name. Some Spanish-speakers who bear the last name descend from inhabitants of the northwestern province of Galicia in Spain. It has been suggested that the Celts settled in Ireland after sailing from departure points in Galicia. Additionally, it has been suggested that some European last names that start with such letter combinations as "Tr-" trace back to Celtic names.