The National Shrine of Our Lady of Champion, formerly dedicated as the Shrine of Our Lady of Good Help, is a Catholic shrine to Mary, mother of God located within the Diocese of Green Bay in the United States. The chapel is in the Champion section of Green Bay, about 16 miles (26 km) northeast of downtown Green Bay proper. It stands on the site of the reported apparition of Mary to a Belgian-born woman, Adele Brise, in 1859.

The apparition was formally approved on December 8, 2010, by Bishop David L. Ricken, becoming the first Marian apparition approved by the Catholic Church in the United States. Bishop Ricken also approved the chapel as a diocesan shrine, recognizing its long history as a place of pilgrimage and prayer. On August 15, 2016, the U.S. Conference of Catholic Bishops designated the shrine as a national shrine. In recognition of this, the shrine's name was changed to The National Shrine of Our Lady of Good Help.

On April 20, 2023, the name of the shrine was changed to The National Shrine of Our Lady of Champion.

Adele Brise was born in Belgium in 1831. Together with her parents, she immigrated to Wisconsin in 1855. In early October 1859, Adele reported seeing a woman clothed in white and standing between two trees, a hemlock and a maple. Adele described the woman as surrounded by a bright light, clothed in dazzling white with a yellow sash around her waist and a crown of stars above her flowing blond locks. Brise was frightened by the vision and prayed until it disappeared. When she told her parents what she had seen, they suggested that a poor soul might be in need of prayers.

The following Sunday, October 8, 1859, Brise saw the apparition a second time while walking to Mass in the community of Bay Settlement. Her sister and another woman (Marie Theresa VanderMissen, 1822–1898) were with her at the time, but neither of them saw anything. She asked the parish priest for advice and he told her that if she saw the apparition again, she should ask it, "In the Name of God, who are you and what do you wish of me?"

Returning from Mass that same day, she saw the apparition a third time, and this time asked the question the priest had told her to ask. The apparition replied, "I am the Queen of Heaven, who prays for the conversion of sinners, and I wish you to do the same." Brise was also given a mission to "gather the children in this wild country and teach them what they should know for salvation."

Brise, who was 28 years old at the time of her vision of the apparition, devoted the rest of her life to teaching children. She initially traveled on foot from house to house, but later opened a small school. Other women joined her in her work and they formed a community of sisters according to the rule of the Third Order Franciscans, although Brise never took public vows as a nun.

Brise died on July 5, 1896.

The original chapel was a 10 foot by 12 foot wooden structure built by Lambert Brise, Adele's father, at the site of the Marian apparition. Isabella Doyen donated the 5 acres (20,000 m) surrounding the spot, and a larger (24 foot by 40 foot) wooden church was built in 1861. This chapel bore the inscription "Notre Dame de bon Secours, priez pour nous" [Our Lady of Good Help, pray for us], giving the shrine its original name. The site became a popular place of pilgrimage and the chapel was soon too small to accommodate the pilgrims who were coming to it. A larger brick chapel was built in 1880 and dedicated by Bishop Francis Xavier Krautbauer, the second bishop of the Roman Catholic Diocese of Green Bay. A school and a convent were also built on the site in the 1880s.

Lumber companies and sawmills had been harvesting the woods of northeastern Wisconsin for decades, leaving immense piles of sawdust and branches as they produced lumber and other wood products. The night of October 8, 1871, a firestorm began near Peshtigo, Wisconsin, that spread through the woods and towns, consuming everything in its path. Unable to outrun the flames, nearly 2,000 people in the area died in the inferno. Some people assume that, driven by strong winds, the conflagration leaped across Green Bay of Lake Michigan and began burning huge sections of the Door Peninsula. When the firestorm – whatever its origin – threatened the chapel, Adele Brise refused to leave and instead organized a procession to petition the Virgin Mary for her protection. The surrounding land was destroyed by the fire but the chapel and its grounds, together with all the people who had taken refuge there, survived the fire unharmed. The conflagration engulfed about 1,200,000 acres (4,900 km) and is the deadliest wildfire in recorded history.

The current building at the shrine was constructed in 1942, with support from Bishop Paul Peter Rhode, who dedicated the new building in July 1942. It is a Tudor Gothic-style building and accommodates approximately 300 people in an upper Apparition Chapel, along with a small Apparition Oratory for prayer on the lower level. The Apparition Oratory also contains a collection of crutches left behind in thanksgiving by people who came to pray at the shrine. The grounds of the shrine have an outdoor area for a rosary walk and Stations of the Cross.

The largest annual gathering at the chapel happens on the feast of the Assumption of the Blessed Virgin Mary, on August 15, celebrated with an outdoor Mass and a procession around the grounds of the shrine.

The Shrine of Our Lady of Champion gained national recognition when the visitations apparition were approved, after a two-year investigation, by Bishop David Ricken on December 8, 2010, making it the first and only apparition approved by the Catholic Church in the United States. Bishop Ricken noted that his predecessors had implicitly endorsed the shrine by holding services there over the years.

On August 15, 2016, the U.S. Conference of Catholic Bishops designated the shrine as a national shrine. In recognition of this, the shrine's name was changed to The National Shrine of Our Lady of Good Help.

On April 20, 2023, the name of the shrine was changed to The National Shrine of Our Lady of Champion.

• Shrines to the Virgin Mary
• List of shrines

• Official website of the National Shrine of Our Lady of Champion
• Catholic Diocese of Green Bay
• Adele Brise-Wisconsin Historical Society