Daiane Caroline Muniz dos Santos (25 May 1988) is a Brazilian physical education teacher and soccer referee.
Daiane is from Três Lagoas, a city located in the interior of the state of Mato Grosso do Sul. She graduated in physical education from the University Center of Santa Fé do Sul (Unifunec), located in Santa Fé do Sul, in the interior of São Paulo.
Since 2018, she has been a member of FIFA's panel of referees. In 2020, she became the first woman to be the main referee in a match of the South Mato Grosso Men's Championship, in the game between Corumbaense and Maracaju. She later transferred to the Federação Paulista de Futebol (FPF), the entity responsible for soccer in the state of São Paulo, and participated in video refereeing in the Brazilian Championship Series A.
In 2022, she served as a video assistant referee (VAR) at the FIFA U-20 Women's World Cup in Costa Rica. She also performed the same role at the 2023 FIFA Women's World Cup. She suffered gender discrimination during the São Paulo State Championship match on 21 February 2026, between Red Bull Bragantino and São Paulo, held in the city of Bragança Paulista, when Bragantino defender Gustavo Marques complained that a game of that magnitude could not be refereed by a woman. The club will decide what punishment will be applied to the player.
These are statistics from major national and international competitions.