Ion Dem Demetrescu (b. 1903 – d. 1977) was a Romanian painter, illustrator, and graphic artist born in Craiova. His early years, marked by marginality and poverty, found their sole refuge in drawing, which soon became a vocation. He trained in the atelier of Arthur Verona, a free academy of arts, and by the 1930s he had established himself as a leading figure in book illustration, poster design, and decorative art.

Demetrescu created numerous advertising materials for the Ministry of Propaganda, yet the advent of the communist regime did not diminish his standing. He was commissioned to illustrate the first primer issued under the new order, a trace of his adaptability and of the clarity of his graphic language. His career as a children’s book illustrator was particularly prolific, with notable periods in the mid-1920s at Universul copiilor, in the 1940s for the publishing house of photographer Nicolae Ionescu, and again in the 1950s and 1960s, when his books were also adapted into filmstrips.

His work is distinguished by a limpid and expressive line, playful in character - capable of meeting both the ideological demands of the time and the imaginative needs of a young readership. For more than three decades he enjoyed editorial prominence, although his name fell into obscurity towards the end of his life. In recent years, thanks to the research and archival recovery undertaken by art historian Adrian Buga, his oeuvre has been reintroduced into the cultural discourse, securing Ion Dem Demetrescu’s rightful place within the history of Romanian graphic art.

Although primarily remembered for his illustrations and graphic work, Demetrescu was also an accomplished painter. His canvases reveal a refined sense of colour and composition, demonstrating the same clarity and expressive power found in his drawings, yet expanded into a visual language that situates him among the remarkable Romanian painters of his generation.