Sissy Löwinger (22 June 1941 – 25 September 2011) was an Austrian actress, director and theatre manager.
She was the daughter of Austrian actors Liesl and Paul Löwinger.
She worked in public relations and dramaturgy for the family theatre "Löwinger Bühne" together with her brother, Paul.
She appeared in the role of Walpurga in the Franz Josef Gottlieb directed German production of Saison in Salzburg (1961).
Löwinger died on 25 September 2011 in Altlengbach, Lower Austria as a consequence of pulmonary embolism.