In the last decades much effort has been devoted to the development of methodologies for landslide hazard and risk assessment. Although there are a few available glossaries, a review of the literature published in international journals and conferences show that the terminologies used differ greatly or are unclear. In 2011, the Joint Technical Committee nº1 of the Federation of International Geo-Engineering Societies established a working group with the objective of preparing a standard glossary of terms relevant to landslide hazard and risk. The glossary aims at an international harmonization of terms and definitions with those used in associated disciplines (i.e. seismology, hydrology, dam safety) while taking into account the specificity of landslides. The glossary takes as starting point previous glossaries prepared by the ISSMGE TC32 and UNISDR.