Aatto Pietikäinen (October 7, 1921, Kuopio – April 2, 1966) was a Finnish ski jumper who competed in the 1940s. He finished eighth in the individual large hill event at the 1948 Winter Olympics in St. Moritz.

External links Individual large hill Winter Olympic results: 1924–56 Aatto Pietikäinen's profile at Sports Reference.com