The Piusa (Russian: Пиуза Piuza or Пимжа Pimzha) is a river in southeastern Estonia and, for the last 14 km before draining into Lake Pihkva, in Pskov Oblast, Russia.

For a 17 km section near Pechory, the Piusa is the border river between Estonia and Russia.

[1] The Piusa has the greatest drop of all Estonian rivers (214 metres).

This article related to a river in Estonia is a stub.

You can help Wikipedia by expanding it.This article related to a river in Russia is a stub.