Anastasiia is a given name. Notable people with the name include:
- Anastasiia Arkhipova (born 2003), Ukrainian figure skater
- Anastasiia Bryzgina (born 1998), Ukrainian sprinter
- Anastasiia Galashina (born 1997), Russian sport shooter
- Anastasiia Gorbunova (born 1995), Ukrainian alpine skier
- Anastasiia Guliakova (born 2002), Russian figure skater
- Anastasiia Hotfrid (born 1996), Ukrainian-born Georgian weightlifter
- Anastasiia Iakovenko (born 1995), Russian racing cyclist
- Anastasiia Makina (born 1997), Russian handballer
- Anastasiia Matrosova (born 1982), Ukrainian judoka
- Anastasiia Motak (born 2004), Ukrainian artistic gymnast
- Anastasiia Mulmina (born 1997), Ukrainian group rhythmic gymnast
- Anastasiia Mysnyk (born 1991), Ukrainian Paralympic athlete
- Anastasiia Nedobiha (born 1994), Ukrainian diver
- Anastasiia Semenova (born 1999), Russian badminton player
- Anastasiia Silanteva (born 1998), Russian alpine skier
- Anastasiia Todorova (born 1993), Ukrainian canoeist
- Anastasiia Veresova (born 1991), Ukrainian female acrobatic gymnast