Leena Pietilä

Irja Ester Helena "Leena" Pietilä, married surname: Vainio (born 29 March 1925 – 20 May 2014) was a Finnish figure skater. She was a two-time Nordic champion and a seven-time Finnish national champion.

Pietilä was born in Rauma, Finland, and skated for Helsingfors Skridskoklubb in Helsinki. She placed 16th at the 1947 World Championships in Stockholm, Sweden; 13th at the 1950 European Championships in Oslo, Norway; and 13th at the 1951 European Championships in Zürich, Switzerland. In February 1952, she represented Finland at the 1952 Winter Olympics in Oslo, Norway, and finished 20th. After retiring from competition, Vainio worked as an international figure skating judge and coach.