André Kostolany (February 9, 1906 – September 14, 1999) was a stock market expert, bon vivant and Chevalier de la Légion d'Honneur.

After World War II, he invested heavily in the reconstruction of Germany, The subsequent economic boom helped him build up his fortune.

His fame was founded in the vast amount of practical experience he had accumulated during his 70-year career, in different trades, in many markets around the world.

Kostolany, spurred by his successful investment in Germany after World War II, held a deep respect for “the inherent qualities and capabilities of the German people”, which, according to him, would consequently lead Germany to a new economic boom (see Wirtschaftswunder), after the German economy absorbed the shock of reunification.

He was for many years the author of a column in the monthly Capital, a stock market related magazine in Germany (he wrote a total of 414 articles).