This volume contains a collection of 22 papers submitted from the below seven symposia held during the 11th International Symposium on Ceramic Materials and Components for Energy and Environmental Applications (CMCEE-11), June 14-19, 2015, in Vancouver, BC, Canada: • Additive Manufacturing Technologies • Advanced Materials, Technologies, and Devices for Electro-optical and Biomedical Applications • Multifunctional Coatings for Energy and Environmental Applications • Novel, Green, and Strategic Processing and Manufacturing Technologies • Powder Processing Technology for Advanced Ceramics • Computational Design and Modeling • Materials for Extreme Environments: Ultra-high Temperature Ceramics (UHTCs) and Nanolaminated Ternary Carbides and Nitrides (MAX Phases)