Isabeli Bergossi Fontana (born July 4, 1983) is a Brazilian model.
Fontana was born in Curitiba, Paraná, Brazil. In 1996 she made it to the finals of the Elite Model Look when she was just 13 and in the following year she moved from South Brazil to Milan, Italy.
In 1999, at the age of 16, she appeared in the Victoria's Secret lingerie catalogue. The shoot caused controversy, as Victoria's Secret stated that they would not use girls younger than 18. Soon after the Victoria's Secret shoot, she was signed by Versace, Ralph Lauren and Valentino.
In 2008, Fontana made her debut on the Forbes The World's 15 Top-Earning Models list at place 11, having earned $3 million.
She has appeared in the Pirelli Calendar on a number of occasions, including in the 2011 calendar, which features models posing as Greek and Roman gods, photographed by Karl Lagerfeld.