Collapse is an independent, non-affiliated journal of philosophical research and development published in the United Kingdom by Urbanomic. It was founded in 2006 by Robin Mackay. It features speculative work in progress by contemporary philosophers, along with contributions from artists, scientists and other writers outside of philosophy. In December 2008, as a part of BBC Today guest editor Zadie Smith's programme, the author Hari Kunzru listed Urbanomic's Collapse as an avant-garde philosophy journal in his A guide to the artistic underground.
In addition to philosophical articles, Collapse has published extensive interviews with notable philosophers and scientists including Alain Badiou, Julian Barbour, Nick Bostrom, Paul Churchland, Jack Cohen, James Ladyman, Thomas Metzinger, Ian Stewart and Roberto Trotta . Collapse has been closely connected with the growth of the contemporary philosophical tendency known as Speculative Realism and the journal has carried publications of new work by the philosophers most closely identified with this movement, Ray Brassier, Quentin Meillassoux, Graham Harman, and Iain Hamilton Grant.