Ceylin del Carmen Alvarado is a Dominican-born Dutch cyclist, who currently competes in cyclo-cross for UCI Cyclo-cross Team Alpecin–Deceuninck, and in road cycling for UCI Women's Continental Team Fenix–Deceuninck. In 2018, she won the gold medal in the Under-23 race at the UEC European Cyclo-cross Championships in Rosmalen. She repeated this feat in 2019. On 1 February 2020 she became world champion in the elite category at the 2020 UCI Cyclo-cross World Championships in Dübendorf, Switzerland.

Fenix–Deceuninck is a women's professional road bicycle racing team based in Belgium, that was formed in 2020. It became a UCI Women's WorldTeam in 2023.