Annefleur Kalvenhaar (10 June 1994 – 23 August 2014) was a Dutch cyclist and mountain biker. She won the European Cyclo-cross Championships in 2013. She began her career at the age of 13. She participated for the first time in a World Cup in 2012. In Houffalize and La Bresse she finished second place in the top 10. She was born in Wierden, Netherlands.