Conrad Heinrich Küchler was a medallist and coin engraver of the last quarter of the eighteenth century and early part of the nineteenth. He was a native of Flanders and appears to have worked first in Germany, then in France, and came over to England about 1790, where he was employed by Matthew Boulton at the Soho Mint, Birmingham, until his death in 1810. He produced coin dies and thirty documented medals. He was Boulton's sole artist for designing and die-cutting.