Using graphic elements like this world map, to see in which countries or regions of the world the surname Sindicato is more common, is of great help.
The quantity of people with the surname Sindicato that we can find in each country can help us discern the origin of the surname Sindicato, as logic tells us that the place with the most people surnamed Sindicato will be the country or area of origin of the surname Sindicato.