Camillo Castiglioni (22 October 1879 – 18 December 1957) was an Italian-Austrian Jewish financier and banker, and was the wealthiest man in Central Europe during World War I. Nicknamed "Austrian Stinnes", he was active in aviation's pioneering days and invested in the arts.

Camillo's education was primarily law, gaining employment as an attorney and legal officer of a bank in Padua, quickly learning international finance and how to manage capital.

Camillo found great success in this position, demonstrating his abilities to negotiate and structure financial deals.

In order to draw from the arising enthusiasm for airplanes and ballooning, as well as to take advantage of the lucrative business the hobby generated, Camillo established one of his first companies, Luftfahrzeug-Gesellschaft, in 1907.

In 1914, he purchased the German aircraft company Hansa- und Brandenburgische Flugzeugwerke, which employed Ernst Heinkel as its chief designer.

Press "czar" and sponsor of the arts (financed Max Reinhardt and helped him to organize the Salzburg Festival).

When Tito refused to pay his commission, Castiglioni succeeded in getting Yugoslavian assets in Italy worth millions sequestered.

A consortium led by the Deutsche Bank and the Diskonto-Gesellschaft purchased the BMW shares previously held by Camillo Castiglioni, who was facing problems of liquidity.

He was the richest man in Central Europe and much beloved by the Viennese whom he assisted financially on Sundays and odd occasions.

So fond was he of appearing in the public limelight that he lived with all the pomp and ceremony of royalty, even traveling in the Kaiser Karl's private parlor car, which he bought.