Noise music is a category consisting of multiple discrete genres of music that have employed noise as a musical resource.

It includes a wide range of musical styles, and sound based creative practices, that feature noise as a primary aspect. It can feature acoustically or electronically generated noise, and both traditional and unconventional musical instruments. It may incorporate live machine sounds, non-musical vocal techniques, physically manipulated audio media, processed sound recordings, field recordings, computer generated noise, stochastic processes and other randomly produced electronic signals such as distortion, feedback, static, hiss and hum. There may also be emphasis on high volume levels and lengthy, continuous pieces. More generally noise music may contain aspects such as improvisation, extended technique, cacophony and indeterminacy, and in many instances conventional use of melody, harmony, rhythm and pulse is often dispensed with.