Nanni, E.A. The Cool Copper Collider JACoW Publishing Geneva, Switzerland A new concept for a low cost high efficiency linear collider based on LN2 cooled copper accelerator structures will be described. The collider is expected to have a performance similar to ILC with higher gradients allowing for the potential of higher energy reach at a substantially lower cost per GeV. The R&D status, expected performance, and future plans will be described.