Registered association (Finland)
In Finland a rekisteröity yhdistys (Finnish for registered association) or registrerad förening (Swedish) is a registered, non-profit organization. The abbreviations ry (also ry.) (Finnish), rf (Swedish) or rs (Northern Sámi) are used as a suffix ending of the association's name, added when the association is officially registered.
Source: Wikipedia — Registered association (Finland) (CC BY-SA 4.0)