Helene Wiet (12 March 1871 – 1939) was an Austrian opera singer who sang leading soprano roles in the theatres of the Austro-Hungarian Empire in the late 19th century.

[1] Wiet was born into a middle-class family in Vienna and trained at the Vienna Conservatory where she studied singing under Luise Meyer-Dustmann and piano under Leopold Landskron.

After singing in Pressburg and Brünn from 1893 to 1895, she became a member of the Deutsches Landestheater company in Prague where she sang for the next four years with great popular success.

[1][2] Following Wiet's marriage in 1899 to the physician Alfons von Rosthorn, she retired from the stage and moved to Graz where he had recently been appointed as a professor at the university there.

She continued to perform in concerts for several years and also trained her niece, Therese Wiet, in singing.