These are a collection of Domestic and International Klinefelter Organizations and Associations. If you should come across other Organizations and Associations and you would like me to add them, please message me through this website and I will be glad to add them. Thank you and I hope these resources are of assistance to you and your needs.
- Australian Support
- French Association for Chromosomal Conditions
- Klinefelter Educational Support Team (KEST)
- Living with XXY: The Organization
- NHS UK