Sonnleithner is a surname. Notable people with the surname include:
- A family of lawyers from Vienna which is closely connected to the world of theater and music. Three of its members are of particular interest to biographers.
- Christoph Sonnleithner (1734–1786), Austrian jurist and composer.
- Joseph Sonnleithner (1766–1835), Austrian librettist, theater director, lawyer and archivist.
- Ignaz von Sonnleithner (1770–1831), Austrian jurist, writer and educator.
- Leopold von Sonnleithner (1797–1873), Austrian lawyer and composer.
- Franz von Sonnleithner (1905–1981), Austrian lawyer and diplomat.
This page lists people with the surname Sonnleithner.
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If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.