Contact us at:

From the Pastor

Watch Catholic TV


RCIA logo


  • Baptized Catholic but have not received First Communion or Confirmation?
  •  Interested in finding out more about the Catholic Faith and possibly wanting to become Catholic?  This program is for you!
  • Classes available. For more information please contact the Parish Center, 46 Winthrop Street 617 242-4664 or email Sr. Nancy at

Cardinal Sean O’Malley introduces our 2017 Catholic Appeal video



  • Church Relighting Project
    The Parish has teamed up with our electric company, Eversource, to upgrade all of the lighting in the Church, Parish Center, and Rectory. This includes all lighting in the Chapel and Good Shepherd School. Every fixture that has a lightbulb will be replaced with a new, energy-efficient LED bulb. The cost to the Parish for this $54,000 upgrade will be $15,537. To help with this cost, we are asking each parishioner to donate $50 to this project.We are thankful to have received this opportunity to participate in this program, and look forward to enhancing all our lighting, all while being more energy-efficient.
    Thank you for considering this request and for your ongoing support for this special community of faith we call our home.

 Not Confirmed

 Adult Confirmation Classes available at the Parish Center, 46 Winthrop Street, Charlestown.

For more information on both of these programs, please contact Sr. Nancy:, or call 617-242-4664






Are you new to our Parish? Register as a parishioner today!

Welcome to St. Mary–St. Catherine of Siena Parish in Charlestown, Massachusetts, U.S.A.

To visitors of our Parish, to those who have recently moved into the area and to those comfortable and nourished here–Welcome to All. And, regardless of your status in the Church, your marital state, your ethnicity, your prior religious experience, your personal history, background or sexual orientation, please know that you are accepted and respected at Saint Mary–Saint Catherine of Siena Parish.

Our Mission

Saint Mary-Saint Catherine of Siena is an urban, Roman Catholic Parish formed in 2006 from two historic Charlestown parishes. We are an intentionally inclusive community welcoming all of the many people who make up our diverse neighborhood. Because our lives are nourished by the Eucharist, we strive to build a vibrant Parish that develops and strengthens our faith and worship. With a goal of being community-oriented in the Spirit of the Gospel, we are involved in the local and global issues of our times. We are therefore dedicated to service, action, and compassion.

Please introduce yourself to the priest and register as a member of our Parish. Please use this website to keep yourself and your family informed of events and liturgical services at the Parish. We hope you will find the rich resource of this vibrant Parish, and our website, useful to help educate, inform and inspire your growth in knowledge and the practice of your Catholic faith.


Featured Content

Our Common Home: The Pope’s groundbreaking Encyclical on social and environmental change

Direct Contributing: an easy, efficient, and paperless way to donate to your Parish

Peace and the Rosary: a monthly service for Christ-centered prayer to contemplate the Mysteries and pray for peace

The Parish on YouTube: visit our new YouTube channel for new content