The study examines the migration of Italian people, expecially from Veneto and Friuli regions to Romania between 1878 and 1948 (at the time of the so-called “Old Kingdom”), focusing on occupations, specific areas of origin and working conditions. The research highlights the significant contribution of skilled workers, craftsmen, and laborers from northeastern Italy to economic growth in the Romanian space and expecially to Romania’s infrastructural development, particularly in the field of railways constructions, timber industries and mining activities. Through a historical and social perspective, the article explores migration networks, processes of integration and the challenges faced by Italian migrant communities in Romania from the late nineteenth to the early twentieth centuries, until the end of World War II.