Piotr Jarosław Dmochowski (born 27 June 1942 in Warsaw) is a Polish-French lawyer, university teacher, art dealer, and collector. He emigrated to France in 1964, became an attorney in Paris, and taught law at Paris Nanterre University. From the 1980s he has been a prominent promoter and collector of Zdzisław Beksiński’s art, publishing albums and organizing exhibitions of the artist’s work.