Family name Räntilä (Räntilä 
) , in all the world, is a very rare last name. The cognomen Räntilä is habitual in Northern Europe, particularly Finland, where it is a rare surname, and Sweden.
| VARIANT | COUNTRY |
|---|---|
| Räntilä | Sweden, Finland |
| pirkko räntilä FI (b. 1932) |
|