As a Catholic college preparatory school sponsored by the Xaverian Brothers and the Diocese of Norwich, Xavier High School fosters the spiritual, academic, and physical growth of its students and challenges them to use their God-given talents in service to others so that each.
Xavier High School was founded in 1963 by The Most Rev. Vincent J. Hines, second bishop of the Diocese of Norwich, as a Catholic secondary school for young men. It is sponsored jointly by the Roman Catholic Diocese of Norwich and the Congregation of the Brothers of Saint Francis Xavier. The school was incorporated under the laws of the State of Connecticut on February 18, 1963.
From the foundation of the school until the present, Xavier has maintained an educational philosophy which seeks "to impress upon students the dignity of the human person created by God, to guide and counsel students in educational and vocational need and to help them prepare for college, for life work, and above all, for life itself."