Adriana Aparecida Costa (born 16 April 1983), known as Tiga and Tiganinha, is a Brazilian futsal player who plays for Leoas da Serra as a pivot.
She was also a footballer who played as a forward.
In 2011, she was naturalized by Equatorial Guinea in order to play of its women's national team at the 2011 FIFA Women's World Cup.
However, on October 5, 2017, FIFA declared Tiga and other nine Brazilian footballers ineligible to play for Equatorial Guinea.At the club level, she played for the futsal team UNIP in Brazil.