Warren Ellis (born February 16, 1968) is a British author of comics, novels, and television, well known for sociocultural commentary, both through his online presence and his writing, which covers extropian and transhumanist themes (most notably nanotechnology, cryonics, uploading, and human enhancement). He is a resident of Southend-on-Sea, England.

Warren Ellis (born 1965, Ballarat, Victoria, Australia) is an Australian multi-instrumentalist and composer, most famous for his work with Dirty Three, Nick Cave and the Bad Seeds and Grinderman. He plays violin, keyboards, bouzouki, guitar, mandolin and can also program electronic loops.