Portrait of Gustave Geffroy is a c. 1895 painting by the French Post-Impressionist artist Paul Cézanne. It portrays Gustave Geffroy, a French novelist and art critic noted as one of the earliest historians of Impressionism. In March 1894, Geffroy wrote a sympathetic article in the periodical Le Journal praising the work of painter Paul Cézanne who until then had received little praise in critical circles.