（1992年8月10日-），韩国女演员。她的职业生涯始于童星，尤其是在 2006 年票房最高的大片《主持人》中。随后在《雪国列车》（2013 年）、《谎言之线》（2014 年）和《办公室》（2015 年）以及电视剧《学习大师》（2010 年）和《通过小道消息听到》（2015 年）中担任主要角色。

Go Ah-sung (born 10 August 1992) is a South Korean actress. She began her career as a child actress, notably in 2006 top-grossing blockbuster The Host. This was followed by major roles in Snowpiercer (2013), Thread of Lies (2014) and Office (2015), as well as the TV dramas Master of Study (2010) and Heard It Through the Grapevine (2015).