Pieter "Piet" Kleine (born 17 September 1951) is a former speed skater from the Netherlands who specialized in the longer distances.

At the 1976 Winter Olympics in Innsbruck, Piet Kleine became Olympic Champion on the 10,000 m, beating world record holder Sten Stensen – who won silver – in a close race.

This was a reversal of the roles in the Olympic 5,000 m (which had been held three days earlier), in which Stensen had won gold and Kleine silver.

In both the 5,000 m and the 10,000 m, Dutch – later French – speed skater Hans van Helden (then world record holder on the 5,000 m) won bronze.

In his free time, Kleine is the leader of a team of marathon skaters.