Anastasia Sidiropoulou (Greek: Αναστασία Σιδηροπούλου; born October 28, 1992) is a Greek model and beauty pageant titleholder who was crowned Star Hellas 2013 and represented her country at the Miss Universe 2013 pageant.

She studied dentistry in Comenius University in Bratislava, Slovakia and specialized in orthodontics.

Anastasia is the daughter of Dr. Nikos Sidiropoulos.

Anastasia Sidiropoulou then became Miss Teen World 2011, which took place in Houston, on Friday, August 13, 2010.

She beat 24 other teenagers from around the world to win the sash and title.