Catholic, most likely.
Mother Teresa's family followed the Roman Catholic religion.
Teresa Graves was a member of the Jehovah's Witnesses religion.
Mother Teresa was a Catholic.
Catholics
Mother Teresa was not the leader of any religion as she was a practicing Catholic. She was the founder of the Missionaries of Charity and headed the order for many years.
There is a 99% chance that any church named Saint Teresa is a Catholic Church.
Mother Teresa was a Catholic only but worked to help Hindus and Muslims.
Mother Teresa was baptized as Catholic when she was one day old. She remained a Catholic her entire life.
Christian Mother Teresa was born into a Catholic family and remained a Catholic her entire life.
Her family was Catholic. Mother Teresa was baptized a Catholic the day after her birth and remained a Catholic all her life.
Mother Teresa was a Catholic her entire life. However, she worked with people of all faiths and never refused her help to anyone who held different beliefs.
She was a Catholic nun but helped anyone of any religion. Se did not discriminate.