Cognome
Tierno
The strongest concentration of Tierno in US arrival records points to Campania, with 37 of 44 arrivals (84 percent) originating there.
44
US arrivals
1830 to 1912
12
Comuni of
origin
4
Regioni
represented
0
Notable on
Wikipedia
Top regione
Campania
37 of 44
84 percent of arrivals
Cittadinanza per discendenza
Could your Tierno line qualify for Italian citizenship?
The largest share of Tierno arrivals came from Campania, most often from the provincia of Salerno. If one of them is your ancestor, Italy may recognize you as a citizen under jure sanguinis (citizenship by descent).
The surname alone does not decide it. Each generation between that ancestor and you does: who naturalized, and when. Since the 2025 law, the number of generations matters too.
The checker goes back through your line one generation at a time. It is not legal advice, and it does not search for records.
Check your lineItalian-born ancestor
A Tierno from Campania
Most often from Salerno (SA)
Each generation between
Name and dates
Did this person naturalize before their child was born?
You
A likely outcome
and the documents your line would need
Not ready to start? Get an email when the citizenship rules change.
Varianti grafiche
Spelling variants worth checking
- The spelling you know may not be the one in the records. For example, a family remembers Mansini, but the records read Mancini.
- If your spelling does not appear, a close variant in the list below may be the same family.
Trierno
1 US arrivals
Patierno
13 US arrivals
Talierno
7 US arrivals
Tieri
25 US arrivals
Tieno
2 US arrivals
Variants are surfaced from the surname index, not from per-name research. None of these is guaranteed to be the same family as Tierno.
Origini per comune
Arrival records by comune
Each row is a comune (municipality) where at least one passenger named Tierno was recorded between 1830 and 1912.