The Klamputis is a river of Kėdainiai district municipality, Kaunas County, central Lithuania.

It originates in Varėnai village, on the edge of Kėdainiai and flows for 4.1 kilometres (2.5 mi) till the confluence with the Smilga (from the right side) in Bartkūniškiai.

The river passes through Varėnai, Tubiai and Bartkūniškiai villages.

The name Klamputis comes from Lithuanian klampus ('slimy, sloughy').

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