Please be aware that there are several websites impersonating as the SIOP 2023 registration. They can be very professional looking and may use online advertising to appear at the top of search results.

Registration for SIOP 2023 is open on the official SIOP 2023 website, which you are on now. Please subscribe to our newsletter to receive more updates regarding the Congress. We look forward to seeing you at SIOP 2023, between October 11- 14, 2023 in Ottawa, Canada!