Andrea Chahad Guedes Vieira, also known as Dadá Vieira(born 5 February 1971) is a former tennis player from Brazil.

She upset Hana Mandlikova in the first round of the 1989 French Open and reached the third round of that tournament.

That November, she reached a career-best ranking of world No.

She also represented Brazil in the 1992 Summer Olympics.

This biographical article relating to Brazilian tennis is a stub.