Jacques Vaillant (1643 in Amsterdam – 1691 in Berlin), was a Dutch Golden Age painter.
According to Houbraken he learned to paint from his older brother Wallerant Vaillant.[1] He travelled to Rome and joined the Bentvueghels with the nickname Leeurik.[1] He became court painter for Friedrich Wilhelm I of Brandenburg after his envoy invited him to Berlin. The Great Elector was so pleased with his work that he sent him to the Emperor Leopold I to paint his portrait.[1] When Vaillant returned from this trip to Berlin, he died soon after.[1]
According to the RKD he was in Rome from 1664 to 1666, in Amsterdam from 1666 to 1670, and then moved to The Hague for two years where he became a member of the Confrerie Pictura from 1670 to 1672, and in 1672 he moved to Berlin.[2] Simon Ruys was his pupil.[2]