Daniel Friedrich Loos (June 15, 1735 – October 1, 1819)[1] was a German medallist, engraver, and die-cutter.

He was the chief engraver and medalist for the Kingdom of Prussia, and was given the title Prussian Court Medallist.

[2] Daniel Friedrich Loos was born June 15, 1735, in Altenburg, Saxe-Gotha-Altenburg, Holy Roman Empire (now Germany).

[2][3] He worked at the Prussian Mint in Magdeburg from 1756 until its closure during the Seven Years' War.

[4] He had two sons which continued his work, Friedrich Wilhelm Loos (ca.