Anastasiia Antoniak

Anastasiia Volodymyrivna Antoniak (, born 21 June 1997) is a Ukrainian finswimmer.

Career Antoniak was born on 21 June 1997 in Kyiv. She won her first silver medal at the 2011 Finswimming World Championships in the surface relay and a bronze one in the surface relay.

In 2013, at the World Championships, held in Kazan, Antoniak received two silver medals in the 4x100 and 4x200 metres surface. In that year, she won a silver medal in the surface at the World Games, held in Cali. Later, she competed at the European Junior Championships, where she won three gold and two silver medals and also broke the world record in the 400 m surface.

The following year, at the Finswimming European Championships in Lignano, she won two silver and two bronze medals in different surface events.

At the 2015 Finswimming World Championships Antoniak won two silver medals in the 400 m surface and 4x200 metres surface relay. At the following World Championships in Volos Antoniak won a silver medal in the 400 m surface and a bronze one in the 4x200 metres surface relay.

In 2017, Antoniak competed at the European Championships in Wrocław, winning a first gold medal in the 400 m surface and two bronze ones in the 200 m surface and 4x200 metres surface relay. Later, Antoniak won two bronze medals in the 200 and 400 metres surface at the World Games in Wrocław.

At the 2018 Finswimming World Championships Antoniak won a silver medal in the 200 m surface and a bronze one in the 4x200 metres surface relay.

In 2021, Antoniak won two silver medals in the 400 m surface and 4x200 metres surface relay at the World Championships in Tomsk.

The following year, Antoniak received a gold medal in the 4x200 metres surface relay and a silver one in the 400 m surface at the 2022 Finswimming World Championships in Cali. Later, she won a bronze medal in the 400 m surface at the 2022 World Games in Birmingham.

The following year, she won the gold medal in the 4x200 metres surface relay at the 28th CMAS Finswimming European Championships in Budapest.