Dantas is a Portuguese language surname. It may refer to:

• Alexandre Dantas (born 1979), Brazilian mixed martial arts fighter
• Allan Dellon dos Santos Dantas (born 1979), Brazilian football player
• Beatriz Góis Dantas (born 1941), Brazilian anthropologist
• Damiris Dantas (born 1992), Brazilian basketball player
• Daniel Dantas (actor) (born 1954), Brazilian actor
• Daniel Dantas (entrepreneur) (born 1954), Brazilian banker
• Eduardo Dantas (born 1989), Brazilian mixed martial artist
• Gustavo Dantas (born 1974), Brazilian martial artist
• Isidore Dantas (born 1947), Indian writer
• Ivonete Dantas (born 1959), Brazilian politician
• Júlio Dantas (1876–1962), Portuguese writer
• João Rodrigues Dantas, Portuguese nobleman
• Leandro Teixeira Dantas (born 1987), Brazilian football player
• Lucas Marcolini Dantas Bertucci (born 1989), Brazilian football player
• Luiz Martins de Souza Dantas (1876–1954), Brazilian diplomat
• Marcello Dantas (born 1967), Brazilian artist
• Maria Dantas (born 1969), Spanish politician
• Mercedes Dantas Lacombe (1888–1966), Argentine poet and teacher
• Nelson Dantas (1928–2006), Brazilian actor
• Pedro Iarley Lima Dantas (born 1974), Brazilian football player
• Rodrigo Correa Dantas (born 1989), Brazilian football player
• Rubem Dantas (born 1954), Brazilian musician
• San Tiago Dantas (1911–1964), Brazilian diplomat and Minister of Foreign Affairs
• Welington Dantas de Jesus (born 1982), Brazilian football player

• Francisco Dantas, municipality in the state of Rio Grande do Norte, Brazil
• Poço Dantas, a municipality in the state of Paraíba, Brazil
• Riachão do Dantas, municipality in the state of Sergipe, Brazil