Brazil–Italy relations refers to the diplomatic relations between Brazil and Italy. Both nations enjoy friendly and semi-privileged relations, the importance of which centres on the history of Italian migration to Brazil. Approximately 31 million Brazilians claimed to have Italian ancestry (approximately 15% of the population) making it the largest number of people with full or partial Italian ancestry outside Italy, with the Brazilian city of São Paulo being the most populous city with Italian ancestry in the world. Both nations are mutual members of the G20 major economies, United Nations and the World Trade Organization.