The Diocese of Burlington is a Latin Church diocese of the Catholic Church for Vermont in the United States. It is a suffragan diocese of the metropolitan Archdiocese of Boston.

The Archdiocese of Boston is a Latin Church ecclesiastical territory, or archdiocese, of the Catholic Church in eastern Massachusetts in the United States. Its mother church is the Cathedral of the Holy Cross in Boston. The archdiocese is the fourth largest in the United States. As of 2023, the archbishop of Boston is Cardinal Seán Patrick O'Malley.