Liege Killer is a science fiction novel by American writer Christopher Hinz.

The book and its sequels Ash Ock and The Paratwa are set in human colonies in orbit around a desolated post-apocalyptic Earth.

The antagonists of the books are the Paratwa, a new species resulting from experimentation on human embryos in the near future.

They are a single consciousness occupying pairs of telepathically linked bodies.

In 2013, Liege-Killer was adapted into a graphic novel, Binary,[2] also written by Chris Hinz, and illustrated by Jon Proctor.