This workshop will bring together theoretical, computational, and experimental researchers from across science and engineering to discuss thermal transport at the nanoscale. Topics will include, but are not limited to: (i) transport in nanostructured and biological materials, (ii) experimental techniques for measuring thermal conductivity and thermal interface conductance, and for characterizing individual phonon modes, (iii) using input from electronic structure calculations and molecular simulations to predict thermal transport properties, and (iv) applications to nanoscale energy conversion.