Balthasar Eggenberger (died 1493), was an Austrian entrepreneur in the early days of mercantilism. He was master of the imperial mint at Graz in the Duchy of Styria and financier to Frederick III, Holy Roman Emperor. He was a man cut of the same cloth as the likes of the Burgundian chancellor Nicolas Rolin, French merchant Jacques Coeur and the Medici of Italy, whose cunning, ambition and skills allowed them to advance into the ranks of the nobility from mere common ancestry in the late Middle Ages and early modern era. His activities laid an important foundation stone for the ascension of the House of Eggenberg.