Claire Feuerstein (French pronunciation: [klɛʁ]; German: [ˈfɔʏ̯ɐˌʃtaɪ̯n]; born 28 February 1986) is a former tennis player from France.

She made her debut in professional competition in 2002, aged 16, at an ITF tournament in Les Contamines, France.

From 2002 to 2009, she played at many ITF tournaments, with three wins.

Her first appearance in a WTA Tour event was at the 2009 Internationaux de Strasbourg, where she lost in the first round of the singles competition, but reached the final in doubles with partner Stéphanie Foretz.

She received a wildcard entry into the main draw of the 2009 French Open and lost to No.