This publication contains an English version of the FAO multilingual thesaurus covering terminology used in the field of land tenure, mainly relating to the following subjects: legal, institutional, historical, description of space, traditional or written land tenure regulations, topographical and land management information techniques. The purpose of the thesaurus is to provide reference material for FAO officials and field experts involved in the implementation of land tenure projects, as well as for use by researchers in rural development issues and for use in training in natural resource management.