SPL: Sha Po Lang (Chinese: 殺破狼, released in the United States as Kill Zone) is a 2005 Hong Kong action film directed by Wilson Yip and written by Yip, Szeto Kam-Yuen and Jack Ng. It stars Donnie Yen, Sammo Hung, Simon Yam, and Wu Jing. The film was released theatrically in Hong Kong on 18 November 2005.

Yam portrays a police detective who, suffering from cancer and about to retire, resorts to illegal means in order to catch a ruthless triad boss. The title Sha Po Lang refers to three words derived from Chinese astrology that each represent a different star capable of good or evil depending on their position in the heavens.