Wilhelm August Rieder (October 30, 1796 – September 8, 1880), was an Austrian painter and draughtsman.
He studied at the Academy of Fine Arts Vienna, where he first met and befriended Franz Schubert.
[citation needed] He subsequently painted a number of Schubert's portraits.
Rieder also painted a number of religious and historical themed works.
He became professor of drawing at the Institute of Engineering in Vienna in 1825, and in 1855 was appointed to a similar post at the Military Academy at Wiener Neustadt.