Surname Халонен (Halonen 
, Халонен 
, Xalonen 
) , worldwide, is quite a common cognomen. The cognomen Халонен is habitual in Finland, where it is a common surname, Malta, where it is quite a rare surname, and Estonia. In absolute terms, it is the most numerous in Finland, the United States, and Sweden.
| VARIANT | COUNTRY |
|---|---|
| Halonen | Sweden, Norway, Finland, United States, Canada |
| Халонен | Russia, Ukraine |
| Xalonen | Georgia |
| Khalonen | Russia |