Mariana Nicolau (born 16 November 1997) is a Brazilian rugby sevens player.

[2] Nicolau competed in the women's tournament at the 2020 Summer Olympics.

[3] She represented Brazil at the 2022 Rugby World Cup Sevens in Cape Town.

[4] She will be competing for Brazil at the 2024 Summer Olympics in Paris.

This Brazilian rugby union biography is a stub.