In all the world, Petrína (Petrína 
) is an extremely rare unknown gender first name.
| VARIANT | COUNTRY |
|---|---|
| Petrína | Iceland |
| petrína mjöll jóhannesdóttir IS (b. 1966) |
|
|
| petrína sæunn randversdóttir IS (b. 1971) |
|
Ottesen, and Ásgeirsdóttir