World Wide Twin's catalogue

The Worldwide Twins’ Data Catalogue is comprised of information from a number of twin registries and cohorts.


Join the catalogue

If you can contribute information about your twin registry or cohort, please fill out this survey.

Please note that our purpose is to provide information on available resources. We do not own or store any data.


Participant twin registries and cohorts:


Name of registry

International International Twin Study
Australia Twins Research Australia
Hungary Hungarian Twin Registry
Malaysia Malaysian Twin Registry
South Korea Healthy Twins Study
Spain Murcia Twin Registry
Sri Lanka Sri Lanka Twin Register
United States California Twin Program