Vieira is the Galician and Portuguese word for "scallop" . It is a common Galician and Portuguese surname.
It may refer to:
- Adelino André Vieira Freitas, or Vieirinha (1986), Portuguese footballer
- Alessandro Rosa Vieira (1977 – ), Brazilian futsal player better known as Falcão
- Alice Vieira (1943 – ), Portuguese author
- Álvaro Siza Vieira (1933 – ), Portuguese architect
- Anton de Vieira (1682 – 1745), Russian administrator
- António Vieira (1608 – 1697), Portuguese Jesuit and writer
- Asia Vieira (1982 – ), Canadian actress
- Carlos Adriano de Souza Vieira (1977 – ), Brazilian author
- Davi Santiago Vieira, Brazilian pecussionist
- Francisco Vieira de Matos, or Vieira Lusitano / Vieira Portuense (1699-1783), Portuguese royal painter
- João Bernardo Vieira (1939-2009), Guinea-Bissau politician
- José Luandino Vieira (1935 – ), Angolan writer
- Jussiê Ferreira Vieira, Brazilian footballer
- Leonel Vieira (1969 – ), Portuguese film director
- Leandro Ricardo Vieira (born 1979) Brazilian footballer
- Luís Filipe Vieira (1949 – ), chairman of SL Benfica
- Marcelo Vieira da Silva Júnior, Brazilian footballer
- Meredith Vieira (1953 – ), United States television personality
- Mestre Jelon Vieira, Brazilian dancer
- Milton Vieira, Brazilian martial arts fighter
- Patrick Vieira, French footballer
- Paulo Afonso Evangelista Vieira, Brazilian politician
- Sérgio Vieira de Mello, Brazilian United Nations employee
- Vasco Joaquim Rocha Vieira, last Portuguese Governor of Macau
- Waldo Vieira, Brazilian parapsychologist