Genoese Gibraltarians have existed in Gibraltar since the 16th century and later became an important part of the population. It is an ethnic community made up of descendants of Genoese and Ligurians who emigrated to Gibraltar during the Italian diaspora. The population of Gibraltar with Genoese surnames is around 20% of the total.

The Italian diaspora is the large-scale emigration of Italians from Italy. There were two major Italian diasporas in Italian history. The first diaspora began around 1880, two decades after the Unification of Italy, and ended in the 1920s to the early 1940s with the rise of Fascist Italy. Poverty was the main reason for emigration, specifically the lack of land as mezzadria sharecropping flourished in Italy, especially in the South, and property became subdivided over generations. Especially in Southern Italy, conditions were harsh. From the 1860s to the 1950s, Italy was still a largely rural society with many small towns and cities having almost no modern industry and in which land management practices, especially in the South and the Northeast, did not easily convince farmers to stay on the land and to work the soil.