Who Are You: School 2015 is a 2015 South Korean television series starring Kim So-hyun, Nam Joo-hyuk, and Yook Sung-jae. It aired on KBS2 from April 27 to June 16, 2015, every Monday and Tuesday at 21:55 (KST) for 16 episodes. It is the sixth installment of KBS's School series which premiered in 1999.

Kim So-hyun is an Australian-born South Korean actress who began her career as a child in 2006, initially gaining public attention for playing pivotal roles in Moon Embracing the Sun (2012) and Missing You (2013).