Natália Guimarães (born on December 25, 1984 in Juiz de Fora, Minas Gerais, Brazil) is a former Miss Universe Brazil. She won the title in April 14 2007 beating out over 26 other contestants from states and the Federal District, Brasília.
Natalia also won the 2006 Top Model of the World International Pageant. However, she resigned due to her participation in Miss Universe 2007 and her runner up from the Philippines assumed the title. On May 28, 2007, Natália competed in the 2007 Miss Universe Pageant held in Mexico City, Mexico. She finished as the 1st runner up.
The day after the Miss Universe competition, a Mexican television show asked the public who should have won the pageant. Guimarães won this poll with almost a third of the votes.