Viguier made her international debut on 18 November 2000 in a 3–0 victory over Greece. She has collected 92 caps since her debut with her only international goal coming 23 February 2003 in a 2–1 victory over the Netherlands. Viguier has participated in several international tournaments for her nation; beginning with UEFA Women's Euro 2001, the 2003 FIFA Women's World Cup, UEFA Women's Euro 2005, UEFA Women's Euro 2009, the 2011 FIFA Women's World Cup and the 2012 Olympics.