Irina Konstantinova-Bontemps (Bulgarian: Ирина Константинова; born 10 July 1976 in Sofia) is a Bulgarian windsurfer, who specialized in Neil Pryde RS:X class. She represented Bulgaria in four editions of the Olympic Games (2000, 2004, 2008, and 2012), and has also placed outside the top ten in both Mistral and RS:X classes. In 2006, Konstantinova married French windsurfer, two-time world champion, and later 2008 Olympic silver medalist Julien Bontemps before she relocated to France, and trained for ASPTT Nantes. As of September 2013, Konstantinova is ranked no. 88 in the world for the sailboard class by the International Sailing Federation.