Anastasiia Romanivna Semenovych (, born 9 August 2007 in Drohobych) is a Ukrainian acrobatic gymnast, who completes in mixed pair with Bohdan Ivanyk.
In 2021, Anastasiia Semenovych and her partner Bohdan Ivanyk debuted competing at the FIG Acro World Cup in Sofia, winning gold medals in mixed pair all-around among juniors. Later, they competed at the 11th FIG Acrobatic Gymnastics World Age Group Competitions in Geneva, finishing 4th in mixed pair all-around.
In 2022, Semenovych and Ivanyk competed at the World Games in Birmingham, finishing 4th in mixed pair all-around. Then they represented Ukraine at the international competition "Wars & Sawa", held in Warsaw, where they received gold medals in mixed pair all-around.
The following year, the duo competed at the 2023 Acrobatic Gymnastics European Championships in Varna, winning silver medals in mixed pair all-around, balance and dynamic.
In 2024, Anastasiia and Bohdan won gold medal in mixed pair dynamic at the Acrobatic Gymnastics World Championships in Guimarães.