Siyana Vasileva (Bulgarian: Сияна Василева; born 3 March 1996)[2] is a retired Azerbaijani group rhythmic gymnast from Bulgaria.

She competed at the European Championships in 2014 (Baku), where she was placed 2nd in the apparatus final with 3 ribbons and 2 balls.

She also competed at the European Championships 2018 in Guadalarajara, Spain and was placed 3rd in the apparatus final with 3 balls and 2 ropes.

She is the oldest daughter of Azerbaijani rhythmic gymnastics former head coach and deputy minister of sport Mariana Vasileva.

The Azerbaijani team was preparing for the European Rhythmic Gymnastics Championships in 2009, which were held in Baku.