Welcome to the catalogue of Global Exposome Cohorts: Global Exposome Cohorts. The Global Exposome Cohort Catalogue is an international registry, based on the FAIR principle, of exposome cohorts with worldwide coverage. The objective is to generate a shared, public space for findability/discovery of cohorts with datasets that are relevant for the exposome field (i.e., that can contribute to answering exposome-related research questions), containing source metadata for each listed resource. We define a cohort as: a longitudinal population (birth, mother-child, adolescent, adult, or multi-generational) in which individual-level data are collected on health outcomes and/or exposures of interest. The Global Exposome Cohort Catalogue hosts metadata for each cohort, focusing on elements such as (Type of Cohort, Timing and duration of data collection, Exposure domains covered [e.g., chemical, urban, lifestyle, social], Geographical scope, Contact information for dataset access, Link to external website or data repository)..