Nicolas Régnier, known in Italy as Niccolò Renieri, was a painter, art dealer and art collector from the County of Hainaut, a French-speaking part of the Spanish Netherlands. He is often referred to as a Flemish artist because this term was often used to designate people from the Spanish Netherlands. After training in Antwerp, he was active in Italy where he was part of the international Caravaggesque movement. His subjects include genre scenes with card players, fortune tellers, soldiers and concerts, religious scenes, saints, mythological and allegorical scenes, and portraits. He also painted a few scenes with carnivals.