Corneliu Porumboiu (born September 14, 1975, Vaslui), Romanian film director and screenwriter. He is the son of well-known football referee and businessman Adrian Porumboiu.
Corneliu Porumboiu won in 2004 second place in the Cinefondation section of Cannes Film Festival with short film Traveling to the city (Romanian: Călătorie la oraş). His 2006 feature 12:08 East of Bucharest (Romanian: A fost sau n-a fost?) has won the Camera d'Or prize at the Cannes Film Festival. In 2009, Porumboiu won the Jury Prize in the Un Certain Regard section and the FIPRESCI Prize at the Cannes Film Festival with his drama film Police, Adjective (Romanian: Poliţist, Adjectiv); this film won also the Transilvania Trophy at Transilvania International Film Festival (TIFF).