When a child is diagnosed with cancer, the whole family rallies around them. Siblings are loved, but often overlooked. Sibling Society exists so no sibling has to navigate that alone.





Sibling Society is a registered nonprofit organization dedicated to supporting, empowering, and informing siblings of children with cancer so they can move forward in their changing role with confidence and strength.
We provide counseling, peer support groups, and mentorship programs to help siblings process their feelings and experiences.
Access guides, articles, and educational materials designed to help siblings understand what their family is going through.
Join in-person and online events where siblings with similar stories connect, share experiences, and build lasting friendships.


When a child is diagnosed with cancer, attention often shift towards the sick child. Healthy siblings of the sick child are 3X more likely to carry fear, loneliness, guilt, and long-term stress. Among those siblings, about 70% feel overlooked and not well supported.
Your support helps us create resources, reach more siblings, and make sure no child has to quietly disappear in their own family’s story.
Every contribution moves this mission forward.