Cognome

Leo

The strongest concentration of Leo in US arrival records points to Campania, with 93 of 240 arrivals (39 percent) originating there.

240

US arrivals
1830 to 1912

88

Comuni of
origin

12

Regioni
represented

17

Notable on
Wikipedia

Arrivals by regioneN = 240
Puglia: 8 arrivalsBasilicata: 2 arrivalsCalabria: 55 arrivalsCampania: 93 arrivalsEmilia-Romagna: 1 arrivalsLazio: 27 arrivalsLombardia: 1 arrivalsMolise: 2 arrivalsPiemonte: 1 arrivalsSicilia: 48 arrivalsToscana: 1 arrivalsVeneto: 1 arrivals

Top regione

Campania

93 of 240
39 percent of arrivals

Arrivals
0
< 3
3 to 9
9 to 28
28+

Cittadinanza per discendenza

Could your Leo line qualify for Italian citizenship?

The largest share of Leo 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 line
Your lineYou fill this in

Italian-born ancestor

A Leo 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.

Distribuzione per regione

Concentration by regione

12 regioni represented

  • Campania9339%
  • Calabria5523%
  • Sicilia4820%
  • Lazio2711%
  • Puglia83%
  • Molise21%
  • Basilicata21%
  • Toscana10%
  • Piemonte10%
  • Veneto10%
  • Lombardia10%
  • Emilia-Romagna10%

Origini per comune

Arrival records by comune

Each row is a comune (municipality) where at least one passenger named Leo was recorded between 1830 and 1912.

Persone notevoli

Notable Leo on Wikipedia

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.

Related guide

Myths About Name Changes at Ellis Island

Names were never changed at the border. The spelling here is the original Italian: Giovinelli in the records, perhaps Jovanelli in the family today.

Read guide

Di leo

390 US arrivals

De leo

161 US arrivals

Lde leo

1 US arrivals

Leon

2 US arrivals

Dec leo

1 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 Leo.