Katharsis is an album by Czesław Niemen released in 1976.

It is a concept album about dead ends and traps on the road of expanding human civilization and space exploration.

Niemen worked on the recording alone, without help from other musicians.

The track "Epitafium (Pamięci Piotra)" is dedicated to drummer Piotr Dziemski, who helped to record Niemen's previous album "Aerolit" and who had died in 1975.