Carbon nanotubes and related nanostructures, including nanosheets, have attracted tremendous attention for their unique structures and intriguing properties. These nanomaterials have been widely investigated - from theory, synthesis and characterization to applications in electronic devices, energy generation and storage, biological and chemical sensors, and so on. In addition, non-carbon nanostructures such as nanotubes and nanosheets of boron nitride (BN) have gained increasing interest. To facilitate scientific interaction among students and researchers on the latest advancements in this area, Symposium MM - Nanotubes and Related Nanostructures was organized and held on April 21–25 at the 2014 MRS Spring Meeting in San Francisco, California. The symposium organizers were Don Futaba (National Institute of Advanced Industrial Science and Technology), Annick Loiseau (Laboratoire d'Etude des Microstructures), Yoke Khin Yap (Michigan Technological University), and Ming Zheng (National Institute of Standards and Technology).