Undercover High School (Korean: 언더커버 하이스쿨) is an ongoing South Korean action comedy spy television series written by Im Young-bin, directed by Choi Jung-in, and starring Seo Kang-joon, Jin Ki-joo, and Kim Shin-rok. The series depicts a man who is an NIS agent goes undercover as a high school student. It premiered on MBC TV on February 21, 2025, and airs every Friday and Saturday at 21:50 (KST). It is also available for streaming on TVING and Wavve in South Korea, and on Viu and Kocowa in selected regions.