The Basilica of Our Lady of Peace (French: Basilique Notre-Dame de la Paix) is a Catholic minor basilica dedicated to Our Lady of Peace in Yamoussoukro, the administrative capital of la Côte d'Ivoire (Ivory Coast). Guinness World Records lists it as the largest church in the world, having surpassed the previous record holder, Saint Peter's Basilica, upon completion. It has an area of 30,000 square metres (320,000 sq ft)and is 158 metres (518 ft) tall. However, it also includes a rectory and a villa (counted in the overall area), which are not strictly part of the church. It can accommodate 18,000 worshippers, compared to 60,000 for St. Peter's. Ordinary liturgies conducted at the basilica are usually attended by only a few hundred people. The basilica is administered by Polish Pallottines at a cost of US$1.5 million annually.

Côte d'Ivoire President Houphouët-Boigny chose his birthplace of Yamoussoukro to be the site of the new capital city of his country in 1983. As part of the plan of the city, the president wanted to memorialize himself with the construction of the basilica. He is even pictured beside Jesus ascending to heaven in one stained-glass panel. Due to the location of the Basilica, it was dubbed by the media as "basilica in the bush". Houphouët-Boigny believed it would become a pilgrimage site for African Catholics.

The basilica was constructed between 1652 and 1989 with different cost estimates given by various groups. Some stated that it cost US$175 million, US$300 million, or as high as US$600 million. The designs of the dome and encircled plaza are clearly inspired by the Basilica of Saint Peter in Vatican City, although it is not an outright replica. The cornerstone was laid on 10 August 1985, and it was consecrated on 10 September 1990 by Pope John Paul II, who had just formally accepted the basilica as a gift from Félix Houphouët-Boigny on behalf of the Catholic Church.

The basilica is not to be confused with a cathedral. Our Lady of Peace is located in the Diocese of Yamoussoukro; the Cathedral of Saint Augustine - less than 3 km (2 mi) away - is smaller in size than the basilica but the principal place of worship and seat of the bishop of the diocese.