Portrait of Denis Diderot

Portrait of Denis Diderot is a 1767 portrait painting by the French artist Louis-Michel van Loo. Rococo in style, it depicts the philosopher, writer and art critic Denis Diderot, a significant figure in the Age of Enlightenment in Ancien régime France. It was common in the eighteenth century for writers to be portrayed in dressing gowns to indicate their literary interests.

Diderot himself strongly disliked the painting. It was exhibited at the Salon of 1767 at the Louvre in Paris, which Diderot wrote about extensively. Today it is in the collection of the Louvre, having been acquired in 1911.