Cassandre Beaugrand (born 23 May 1997 in Livry-Gargan) is a French triathlete, 2014 National Elite Champion, 2013 and 2014 National Youth Champion, 2013 European Team Relay Youth Champion and 2014 Vice Junior World Champion.
From 2006 to 2011, Cassandre Beaugrand represented her hometown club Livry-Gargan Athlétisme and since then has been trained by her father Ludovic Beaugrand. In 2012 Beaugrand joined AS Monaco Athlétisme and Saint-Raphaël Triathlon, which she left in 2014 to represent Poissy Triathlon in the prestigious French Grand Prix de Triathlon circuit. On 28 September 2014, Beaugrand took part in the Grand Final of the Club Championship Circuit in Nice and won both the individual and the club ranking, at the same time this race served as the Elite French Championship.
Since 2012, Cassandre Beaugrand has taken part in ITU competitions. At the age of 15, she placed second at the European Championships in Aguilas (1 September 2012) in the Team Relay Youth category (16–17 years). In 2013, she won the silver medal at the French Championships (1 June 2013) in the junior category although she was still in the first year of the youth category (cadette, 16–17 years), and at the European Championships in Holten (27 June 2013) she won the gold medal in the Team Relay Youth category. In 2014, she won her first individual gold medal at the Junior European Cup event in Quarteira (13 April 2014) and at the European Junior Championships in Kitzbuhel (20 June 2014) she placed third. At the Junior World Championships in Edmonton (29 August 2014) Beaugrand won the silver medal.