Dick Arentz (born May 19, 1935) is an American fine art photographer and author known for his art practice and for his book Platinum & Palladium Printing, which is widely considered to be the comprehensive text about this subject.

In a fifty-year career, Arentz continues to make photographs, publish, and teach the techniques of platinum and palladium printing. As a result of his research, he was able to solve a problem that has plagued non-silver printers for years with the formulation of specifications to allow a major paper company to manufacture a paper suitable for these photographic processes.

Arentz has had over seventy-five solo exhibitions in museums and private galleries. Since 1984 he has conducted over forty platinum printing workshops across North America.

In 2000, having spent 35 years exposing film through the bellows of large format view cameras, Dick began to use the latest digital technology. In 2010 with the publication of Italy Through Another Lens Arentz has moved to a new phase of his career; he now spends a good portion of each year photographing in Europe. Arentz worked in Scotland from 2005 to 2014 and in the Veneto from 2009 to 2013. These images can be seen in Piezography. Starting in 2017, Arentz has concentrated on photographing the interiors of English cathedrals, using a historic Leica lens.

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