Palais Harrach is a Baroque-style palace located at Freyung 3 in Vienna, Austria.
It was originally owned by the noble Harrach family.
The building was extensively restored and renovated in the late 1990s, and it now houses offices and shops.
Count Ferdinand Bonaventura I von Harrach bought a ruined edifice on this site during the late 17th century, which was replaced in 1696–98 by a new building designed by Domenico Martinelli.
From 1870 to 1970, it housed the picture collection of Count Aloys Thomas Raimund von Harrach, which is now in Schloss Rohrau.