Bernhard Ludwig Buchbinder (7 July or 20 September 1849 – 24 June 1922), pseudonym Gustav Klinger, was an Austro-Hungarian actor, journalist and writer.
His best-known operetta libretto remains Die Försterchristl.
Buchbinder was born in Budapest, a part of the Austrian Empire.
He moved to Vienna in 1887 and lived there as a feature writer; among others, he wrote for the Neues Wiener Journal.
Besides his journalistic activity Buchbinder wrote novels, folk plays and especially operetta libretti in Viennese style.