Karmic Mahjong (simplified Chinese: 血战到底; traditional Chinese: 血戰到底; pinyin: xùe zhàn dào dǐ) is a 2006 Chinese comedy film directed by Wang Guangli. It stars Francis Ng as a mechanic from Chengdu plagued by bad luck and Cherrie Ying as a young woman who appears to share the same affliction. The film also features cameos by the prominent Chinese directors Wang Xiaoshuai and Jia Zhangke.

The film, a mainland production of the Shanghai Dachong Cultural Information Company and the Zhangzhou Xinchuang Cultural Information Company, nevertheless is director Wang Guangli's homage to the Hong Kong tradition of action-comedies.