Sympathy for Mr. Vengeance (Korean: 복수는 나의 것; lit. "Vengeance Is Mine") is a 2002 South Korean neo-noir crime thriller film directed and co-written by Park Chan-wook. The film stars Shin Ha-kyun as Ryu, a young, deaf-mute factory worker trying to earn enough money for his sister's kidney transplant by holding the daughter of a wealthy man for ransom, and the path of vengeance that follows when the plan goes awry. Alongside Ha-kyun, the film's cast includes Song Kang-ho, Bae Doona, Han Bo-bae, and Im Ji-eun.

Sympathy for Mr. Vengeance did not fare well commercially upon its initial release in South Korea, and has garnered mixed reviews. Despite this, it won several awards. It is the first installment in director Park's thematic Vengeance Trilogy, and is followed by Oldboy (2003) and Lady Vengeance (2005).