In the world, Pitkäjärvi (Pitkäjärvi 
) is an extremely rare unknown gender forename. Predominantly, Pitkäjärvi is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Pitkäjärvi | Sweden, Finland |
| petri pitkäjärvi Finnish ice hockey right winger, FI (b. 1976) |
|