Current Session Info

There are no sessions to register for at this time.

Getting Help

If you need help with the registration process, click here to submit a request, or contact:

For assistance with Registration,

For more information, visit the St William CYO website at


Welcome to St. William the Abbot CYO online registration system.

Registration for 2018 travel and intramural volleyball will be held from October 26th through November 5th. For more information, see

Registration for CYO Basketball was held from Sunday, June 25th through Saturday, July 8th. There are a limited number of spots available after the initial registration period for girls in grades 4-7 and boys in grades 4-12.  A second basketball registration will be held from Sunday August 13th through Monday August 21st.

Registration for the St. William CYO Sharks swim team will be held from Sunday September 17th until Saturday September 30th, or until all groups are filled. Further information for the Sharks swim team is available on our website,