Symposium Y, "Nanomaterials Integration for Electronics, Energy, and Sensing," was held Nov. 29-Dec. 3 at the 2010 MRS Fall Meeting in Boston, Massachusetts. The symposium provided a forum for scientists and engineers to showcase their latest research results focused on the challenges of integration in combining diverse nano-materials together across length scales and into nanosystems to achieve novel properties and performance. The final program of this symposium consisted of over 240 papers (15 invited) presented over 14 sessions (10 oral and 4 poster). The symposium also included two joint sessions with: 1) Symposium B, "Carbon-Based Electronic Devices-Processing, Performance, and Reliability"; 2) Symposium Z, "Hierarchical Materials and Composites-Combining Length Scales from Nano to Macro." The overarching theme of the symposium resonated with the idea that advances in nanotechnology will ultimately be enabled by the invention, development and refinement of methods for the integration of nanomaterials into useful architectures and systems.