Son Seong-yoon (; born August 24, 1984) is a South Korean actress. She is best known for her roles in the film The Wrath (2018), and The Prisoner (2020), and in the television series Touch Your Heart (2019), Once Again (2020), ' (2021), Love Twist (2021âÂÂ2022), and Elegant Empire (2023).
Son debuted in TV series with 2006 KBS historical drama Hwang Jini.
Son appeared in tvN's Ugly Miss Young-ae Season 5 (2009), MBC's Pasta (2010). In 2011 she was cast in My Princess, Scent of a Woman and Bravo, My Love!
In 2015 she appeared in Divorce Lawyer in Love and KBS Drama Special season 6, episode 4 "Funny Woman". Later She appeared in TV series such as: Because This Is My First Life (2017) and What's Wrong with Secretary Kim (2018). In 2019 she appeared in Touch Your Heart as public prosecutor. In 2020, she played the role of Yoo Bo-young in KBS2 TV weekend drama Once Again, the Yoon Gyu-jin's (Lee Sang-yeob) first love.
On August 4, 2020, she signed an exclusive contract with Woongbin ENS.
In 2021, Son appeared in ', My Roommate Is a Gumiho and KBS daily drama Love Twist as Kang Yoon-ah, one of the main cast.