Heikki Vihtori Hasu (born 21 March 1926) is a Finnish retired Nordic skier who competed in the 1948 and 1952 Olympics.

He placed fourth in the individual 18 km race at both Olympics, losing the bronze medal by seconds and served as the Finnish flag bearer in 1952.

He won the Nordic combined event at the Holmenkollen ski festival in 1953.

Hasu became the first Finn to be awarded the Holmenkollen medal in 1952 (shared with Stein Eriksen, Torbjørn Falkanger and Nils Karlsson).

[1] Hasu was a farmer, and after retiring from competitions served two terms in the Parliament of Finland in 1962–66 and 1967–70.