Choi Soo Young (최수영) is a South Korean singer and actress. She was part of Japan's short-lived Korean-Japanese singing duo Route in 2002. After returning to South Korea in 2004, Sooyoung eventually became a member of the girl group Girls' Generation in 2007, which rose to become one of the most successful girl groups in South Korea.
Aside from her group's activities, Sooyoung has also starred in various television dramas such as The 3rd Hospital (2012), Dating Agency: Cyrano (2013), My Spring Days (2014), 38 Revenue Collection Unit (2016), Tell Me What You Saw (2020), Run On (2020), and If You Wish Upon Me (2022).
In October 2017, Sooyoung left SM Entertainment, although she remains a member of Girls' Generation.