The accident occurred at 1700 GMT near the station of Kritzendorf, about 20 kilometres (12 miles) north-west of Vienna.
Four people sustained moderate injuries and four others light wounds, said Infrastructure Minister Norbert Hofer.
One person airlifted to hospital with head injuries but was conscious.
Both trains were emptied of people by 1830 GMT.
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)
Get the latest election news, live updates and election schedule for Lok Sabha Elections 2019 on ndtv.com/elections. Like us on Facebook or follow us on Twitter and Instagram for updates from each of the 543 parliamentary seats for the 2019 Indian general elections.