Vaz is a Portuguese language surname.

It may refer to:

• Ann-Marie Vaz (born 1966), Jamaican politician
• Armindo Vaz d'Almeida, former Prime Minister of São Tomé and Príncipe
• Camillo Vaz (born 1975), French football manager
• Carlos Vaz Ferreira, Uruguayan philosopher
• Carta de Pero Vaz de Caminha, Brazilian diarist
• Claudio Ibrahim Vaz Leal, Brazilian footballer
• Damião Vaz d'Almeida, former Prime Minister of São Tomé and Príncipe
• Daryl Vaz, Jamaican politician
• Douglas Vaz (died 2019), Jamaican politician
• Gail Vaz-Oxlade, Canadian writer and TV personality
• Herkley Vaz, Jamaican footballer
• João Vaz Corte-Real, Portuguese explorer
• João Vaz, Portuguese painter
• José Mário Vaz, former President of Guinea-Bissau
• Joseph Vaz, 17th century Sri Lankan missionary
• Keith Vaz, British politician and former Labour MP
• Luís Vaz de Camões, Portuguese poet
• Luís Vaz Pereira Pinto Guedes, Portuguese military commander
• María Eugenia Vaz Ferreira, Uruguayan teacher and poet
• Pero Vaz de Caminha, 15th century Portuguese knight
• Ricardo Vaz Tê, Portuguese footballer
• Tristão Vaz Teixeira, Portuguese navigator and explorer
• Valdomiro Vaz Franco, Brazilian footballer
• Valerie Vaz, British politician and Labour MP
• Zeferino Vaz, Brazilian educator
• Lançados (Portuguese Africans) settlers:
• Bibiana Vaz, seventeenth century slave-trader from Cacheu, Guinea-Bissau.