An Seo-hyun (안서현, born January 12, 2004) is a South Korean actress. Starting her acting career in childhood, she gained early recognition in television series, including "Dream High" (2011) and "The Village: Achiara's Secret" (2015), as well as in feature films such as "The Housemaid" (2010) and "The Divine Move" (2014).

She gained wide international fame for her leading role as Mija in Bong Joon-ho's film "Okja" (2017) for Netflix, which competed for the Palme d'Or at the Cannes Film Festival. Her filmography includes "Oh! My Ghost" (2022) and "Hana Korea" (하나 코리아).