The 15th ACM/IEEE System Level Interconnect Prediction 2013 workshop will take place in Austin Convention Center, Austin, Texas on June 2, 2013. It will be co-located with 50th ACM/EDAC/IEEE Design Automation Conference, June 2-6, 2013. The general technical scope of the workshop is the design, analysis, prediction, and optimization of interconnect and communication fabrics in electronic systems. The program and organizing committees invite original contributions to the workshop. These contributions include papers, tutorials,panels, special sessions, and posters. We accept posters based on novelty and contributions to theadvancement of the field. The special focus topics are optical interconnects and wirelessinterconnections; posters that target these topics are highly encouraged.