The aim of this Workshop is to bring together researchers who apply similarity and symmetry analysis to engineering problems in both solid and fluid mechanics, researchers who are developing significant extensions of these methods so that they can be applied more widely, and numerical analysts who develop and use such methods in numerical schemes. Symmetries are useful to integrate the differential equations underlying the boundary value problems encountered in solid and fluid mechanics, to build symmetry preserving numerical schemes. As to formal aspects, symmetries constitute the main ingredient of Noether’s theorem, which is strongly related to Lagrangian and Hamiltonian formulations in continuum mechanics. In solid mechanics, configurational mechanics is based on Eshelby stress, which may be also evidenced as a variational symmetry of the original boundary value problem.