The kris or keris is an asymmetrical dagger indigenous to Indonesia, Malaysia, Thailand and Brunei. It is known as kalis in the southern Philippines. The kris is famous for its distinctive wavy blade, but many have straight blades as well. Both a weapon and spiritual object, kris are often considered to have an essence or presence, with some blades possessing good luck and others possessing bad.

In 2005, UNESCO gave the title Masterpiece of the Oral and Intangible Heritage of Humanity to the kris of Indonesia. In return, UNESCO urged Indonesia to preserve their heritage.