This Special Issue presents some works considered innovative in the field of sustainability in geotechnics and whose practical application is already current or may occur in the near future. The Special Issue brings together sixteen papers that, not only for their scientific merit, address some of the current and future sustainable solutions in geotechnics. The papers published cover a wide range of these innovative and sustainable topics with a specific focus on the research, design, construction, and performance of sustainable geotechnical works. These works are expected to inspire the development of geotechnics, contributing to the future construction of more resilient and sustainable geotechnical structures.