Kill Switch (stylized as kill.switch) is a third-person shooter video game developed and published by Namco Hometek for the PlayStation 2 and Xbox. A port for Microsoft Windows was released in 2004 while an abridged Game Boy Advance port developed by Visual Impact was released the same year.

The most distinguishing characteristic of Kill Switch is its cover system, a mechanic that has the player character taking cover behind objects and around corners in a manner similar to Namco's own Time Crisis series of light-gun shooters as well as Koei's third-person shooter WinBack and Hideo Kojima's stealth game Metal Gear Solid 2: Sons of Liberty.