It is the family name of the House of Silva. The name is widespread in Galician -speaking regions of Spain (mostly in Galicia) and even more so in regions of the former Portuguese Empire in the Americas (being the most common surname in Brazil), in Africa and Asia, notably in India and Sri Lanka. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.