Pääjärvi may refer to:
==Lakes== Pääjärvi (Karstula), located in Karstula in the region of Keski-Suomi, Finland Pääjärvi (Lammi), located between the cities of Hämeenlinna and Hämeenkoski, Finland Lake Pyaozero (Finnish: Pääjärvi), located in the Republic of Karelia, Russia
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).