Starkweather is an American metal band from Philadelphia, formed in 1989. They have a complex experimental metal sound often including use of dissonance, intricate tempo changes and avant-garde sensibilities. Starkweather helped pioneer the hardcore punk/heavy metal crossover sound that would later be known as "metalcore", as well as being a major influence on the mathcore subgenre. They have influenced many of today's top selling hardcore/metal bands such as Converge, The Dillinger Escape Plan, Mastodon and Coalesce among many others.
The name Starkweather is taken from Charles Starkweather, a late-1950s spree killer.