Bernadette Soubirous (January 7, 1844–April 16, 1879) was a visionary from the town of France. Her visions made the town a major site for pilgrimages. In 1933 she was canonized as a saint by the Catholic Church.

Bernadette was the daughter of François Soubirous, a miller, and the eldest of six children; they lived in extreme poverty. On 11 February 1858, aged 14, while she was out gathering firewood with her sister and another friend at the grotto of Massabielle outside Lourdes, Bernadette saw the first of 18 visions of a lady who was later accepted by the Church as being the Blessed Virgin Mary. The other girls saw nothing. The apparition did not identify herself until the 17th vision, and until then Bernadette called her simply 'Aquero' ('she' in the local dialect).

On the (?? third) vision, the lady told Bernadette to drink from the spring that flowed under the rock. Although there was no known spring there, and the ground was hard and dry, Bernadette did as she was told and dug into the dirt, and a spring appeared which continues flowing to this day. The water of the spring is claimed to have miraculous healing properties; in the 145 years since then, about 70 cures have been verified by the Church as miraculous, but only after extremely rigorous scientific and medical examinations failed to find any other explanations.

The other content of Bernadette's visions was simple, and focused on the need for prayer and penance.

Her 17th and second-last vision, which went for over an hour, was on March 25, 1858. During this vision, the second of two "miracles of the candle" occurred. Bernadette was holding a lighted candle; during the vision it burned down, and the flame was in direct contact with her skin for over 15 minutes but she showed no sign of experiencing any pain. This was witnessed by many people present, including a doctor who timed it. Despite the flame, there was no sign that her skin was in any way affected, so the doctor monitored Bernadette closely but did not intervene. After the vision ended, the doctor examined her hand but found no evidence of any burning, and she was completely unaware of what had been happening. The doctor then briefly applied a lighted candle to her hand and she reacted immediately.

Towards the end of this vision, Bernadette asked the lady her name but she just smiled back. She repeated the question a further three times. The lady then said, in the local dialect, "I am the Immaculate Conception". Four years earlier, Pope Pius IX had promulgated the doctrine of the Immaculate Conception. This was that, alone of all human beings who have ever lived, Mary the mother of Jesus was born without the stain of original sin. However this was not well known to Catholics at large at that time, being generally confined to discussion amongst the clergy. It certainly was not an expression known to a simple uneducated peasant girl who could barely even read, and her parents, teachers and priests all later testified that she had never previously heard the words 'immaculate conception' from them.

Bernadette was a sickly child; she suffered most of her life from tuberculosis, and some of the people who interviewed her following her revelation of the visions thought her simple_minded. But despite being rigorously interviewed by officials of both the Catholic Church and the French government, she stuck consistently to her story.

Disliking the attention she was attracting, Bernadette became a nun at the convent of the Sisters of Notre Dame de Nevers at the age of 22. She spent the rest of her brief life there, fighting tuberculosis of the bone in the right knee. She eventually died of her illness at the age of thirty-five on April 16, 1879. She took no notice of the development of Lourdes as a pilgrimage shrine, and was not present for the consecration of the basilica there in 1876.

Her body was first exhumed on September 2, 1909, in the presence of representatives appointed by the postulators of the cause, two doctors, and a sister of the community. Although the crucifix in her hand and the rosary had both [[Redox|oxidized], her body was found to be "incorrupt" — preserved from decomposition, perhaps by supernatural means. This was one of the miracles cited for support of her canonization. Her body was washed and reclothed before burial in a new double casket.

The corpse was exhumed a second time on April 3, 1919. The body was found to be still preserved. There was slight discoloration of the face which has been explained as being due to the washing process of the first exhumation. A wax mask was applied to the face and the remains were then placed in a gold and glass reliquary in the Chapel of Saint Bernadette at the motherhouse in Nevers.

She was canonized in 1933, not so much for the content of her visions, but rather for her simplicity and holiness of life.

Her life was given a fictionalised treatment in Franz Werfel's novel The Song of Bernadette, which was later made into a film starring Jennifer Jones as Bernadette (and the uncredited Linda Darnell as the Immaculate Conception.) Jones won her only Best Actress Oscar for this portrayal.