Welcome to SIOP

SIOP, the International Society of Paediatric Oncology, is a dynamic and vibrant global organisation dedicated to increasing knowledge about all aspects of childhood cancer. Our aim is to improve and optimise treatments throughout the world. SIOP’s vision is that no child should die of cancer.

We encourage all healthcare professionals involved in work on cancer in children and young adults to join SIOP, attend our congresses and regional meetings, and use SIOP as a means of developing their networks.


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SIOP 2015 Congress

October 8 - 11, 2015
Cape Town, South Africa
FAQs - Abstract submission, Registration, Visa applications etc. - click here
Key Dates

My Child Matters Awards

APPLY NOW! Sanofi-Espoir Pediatric Nursing Oncology Fellowships 

SIOP Meeting Endorsement - Click here to download the form


NEW! SIOP Training Opportunities - Find out more

SIOP Sections


  • Congress
  • Webcast
  • Membership
  • Nurses Section
  • Congress

    SIOP 2014, Toronto, Canada, 22-25 October 2014.

  • Webcast

    View selected sessions of SIOP Congresses!

  • Membership

    Join SIOP and enjoy the many benefits which membership brings!

  • Support SIOP

    By supporting SIOP, you join the fight for a future where no child dies of cancer.

Join SIOP Now!

Become a part of the SIOP community today and connect with other paediatric oncology professionals.

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Extended abstract submission!

Submit your abstract to the SIOP 2015 Cape Town Annual Meeting now! Deadline March 24, 2015

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