Gustaf Gabriel Roland af Hällström (23 August 1905 – 21 February 1956) was a Finnish film director. During his career, he directed 20 films, including Pikajuna pohjoiseen (1947), Läpi usvan (1948), Tukkijoella (1951), Noita palaa elämään (1952), Putkinotko (1954) and Ryysyrannan Jooseppi (1955).[1]
Hällström was married to actress Elvi Saarnio. As a screenwriter, he used a pseudonym Viljo Hela.[2]