War of the Arrows (Korean: 최종병기 활), alternately titled Arrow: The Ultimate Weapon, is a 2011 South Korean historical action film starring Park Hae-il, Ryu Seung-ryong, and Moon Chae-won. Set after the Second Manchu invasion of Korea (Qing invasion), the film is about an archer who risks his life to save his sister from slavery under Qing-Prince Dorgon's rule.

Praised by critics for its fast pacing and combat sequences, the film drew an audience of 7.48 million, making it the highest grossing Korean film of 2011. It was also honored at the 48th Grand Bell Awards and the 32nd Blue Dragon Film Awards, including Best Actor for Park, Best Supporting Actor for Ryu, and Best New Actress for Moon. The film is also notable for the rare use of the Manchu language in some of its dialogue, and the demonstrative use of archery techniques, including a tongah arrow guide.