Family name Хаапалайнен (Haapalainen 
, Хаапалайнен 
) , all around the world, is quite a rare surname. The family name Хаапалайнен is habitual in Northern Europe, particularly Finland, where it is quite a common surname, Sweden, where it is a rare surname, and Estonia. In absolute terms, it is commonest in Finland, Sweden, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Haapalainen | Canada, Sweden, Estonia, United States, Finland |
| Хаапалайнен | Russia |