Dumitru Iuca (March 7, 1882 – November 27, 1940) was a Romanian politician. Born in Giurgiu, he studied law in university before practicing as a lawyer with the Vlașca County bar. Entering the National Liberal Party (PNL), Iuca was named prefect of Vlașca in 1914, and also served as mayor of his hometown. In 1919, he was elected to the Assembly of Deputies. In the 1930s, he formed part of a relatively younger faction within the PNL, alongside Gheorghe Tătărescu, Victor Iamandi, Ion Inculeț, Richard Franasovici and . This clashed with the older wing led by Dinu Brătianu and was eventually driven to join the camarilla surrounding King Carol II.