Riffian (; ) is a comune (municipality) and a village in South Tyrol in northern Italy, located about northwest of Bolzano.
As of 30 November 2010, it had a population of 1,306 and an area of .
Riffian borders the following municipalities: Kuens, Moos in Passeier, St. Leonhard in Passeier, St. Martin in Passeier, Schenna, and Tirol.
The municipality contains the frazioni (subdivisions, mainly villages and hamlets) Magdfeld and Vernuer (Vernurio).
The emblem represents a bell tower, with the bell box and the onion dome, on azure; it is the symbol of the local church in the village. The emblem was adopted in 1968.
According to the 2024 census, 96.28% of the population speak German, 3.03% Italian and 0.70% Ladin as first language.