The 23rd International Conference on Supersymmetry and Unification of Fundamental Interactions will be organized by the HEFTI group at UC Davis. The meeting will be held at Lake Tahoe during Aug. 23-29, 2015. The goal of the conference is to review and discuss the recent progress in particle physics, string theory and cosmology. Early results from Run 2 of the LHC and future experiments will also be discussed. The meeting will take place in the Granlibakken Lodge.