Frequently Asked Questions

Please contact the parish office at: 512-255-4473.

You can visit the parish office during the week to fill out a registration form. Please bring all contact information for family members (phone numbers and email addresses) along with sacremental documents if required for future sacraments.

If you are not yet a Catholic, you can learn more about how to become one here.

The parish office is open from 10:00 am to 5:00 pm, Monday to Friday, and 8:30 am to 3:30 pm on Sundays. 

You can contact the parish office at 512-255-4473.

The first step is to come to the front office to pick up an information packet. At that time, you can also pre-register for a pre-baptismal class. There are both English and Spanish Baptism Preparation classes.

Baptism Preparation classes are held on the 3rd Saturday of every month. Spanish classes begin at 8:30 AM, and English classes begin at 10:00 AM.

Both parents and godparents/sponsors are required to attend and participate in an entire class offered at Saint William or another Catholic Church. If parents and godparents/sponsors attend a class at another church, they will need to  provide written proof of attendance of the Baptism Preparation class at another Catholic parish within the past two years.


For more information, see our Baptism page.

You will need to schedule an appointment at least one year prior to the wedding date to get the process started. Please visit our Matrimony page to learn more. 

Simply call the parish office at 512-255-4473, and the receptionist will direct your call to one of the priests. If they are not in, you may leave a message, and one of the priests will contact you to schedule a meeting.

Please contact the parish office at 512-255-4473.

To request a priest for an Anointing of the Sick or Last Rites, please call the 24-hour answering service at 512-473-6349.  Whoever is on call will make sure that a priest contacts you as soon as possible.

Childcare in the parish nursery is currently available during the 9:30 AM, 11:30 AM and 1:30 PM Masses. The nursery is located in the Education Center to the left of the church.

Ministry leaders who wish to promote an upcoming event can fill out the Marketing Request Form on the Communication page to have their event promoted in the bulletin.