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Last name Pelagio (Pelagio
, Pelagius
, Пайо
) , throughout the world, is a common cognomen. The surname Pelagio is habitual in Philippines, where it is quite a rare surname, United Arab Emirates, and Mexico. Measured by absolute frequency, it is commonest in Philippines, Mexico, and Brazil. Likewise, Pelagio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Pelagio | Philippines, Brazil, Mexico, United States, Peru |
| Pelagius | Spain, Tanzania, Italy, United States, Germany |
| Пайо | Kazakhstan, Russia, Bulgaria, Belarus, Ukraine |