Petra Nemcova (in Czech Němcová; born 24 June 1979) is a Czech model, television host and philanthropist who founded and chairs the Happy Hearts Fund.
Scouted on the streets of Prague by NEXT Model Management, upon signing she moved to Milan, Italy. After winning the 1995 Czech Elite Model Look, she returned to Milan where her career flourished. She has featured in campaigns for: Benetton, Bulgari, Cartier, Clarins, Cortefiel, Dirk Bikkembergs, Fortunoff, Graff, Hewlett Packard/Intel, HS, Intimissimi, John Lewis, Lancaster, La Perla, La Senza, Maidenform, Max Factor, Pantene Pro-V, Passport, Playtex, Rampage, Schwarzkopf, Victoria’s Secret, and Wild Orchid. Nemcova has appeared on international covers of Harper’s Bazaar, Madame Figaro, Elle, Shape, Cosmopolitan, Marie Claire, Flare, Vegas, Glamour, FHM and Sports Illustrated.
In 2000–2004, she worked for designers Lolita Lempicka, Gai Mattiolo Erreuno, Matthew Williamson, Custo Barceloa, Blunauta, Dirk Bikkembergs, Gugliemo Cappone, Luciano soprani, Marina Babini, Yumi Katsura, Akadius, and Michino Koshino.
Němcová gained attention outside the fashion industry after featuring on the cover of the 2003 Sports Illustrated Swimsuit Issue, from a shoot in Barbados by Walter Iooss. She also appeared in the 2002, 2003, 2004, 2005 and 2006 editions. She was the object/subject of Joanne Gair’s body painting work. In January 2015 Němcová replaced Abbey Clancy as the face of Ultimo underwear.