The Catholic Church in Somalia is part of the worldwide Catholic Church, under the spiritual leadership of the Pope in Rome.
There are very few Catholics in Somalia, with only about one hundred practitioners as of 2004.
The whole of the country forms a single diocese, the Diocese of Mogadishu. During the pre-independence period, there were, at its peak in 1950, 8,500 Catholics in the Diocese of Mogadishu (0.7% of the nation's population), almost all of whom were expatriate Italians. Catholics are not allowed to proselytise, especially to Muslims.
Muslims who change their faith to Catholicism, are subject to societal and official pressure, which may lead to death penalty. However, there are cases in which a Muslim will adopt the Christian faith, secretly declaring his/her apostasy. In effect, they are practising Catholics, but legally Muslims; thus, the statistics of Somali Catholics does not include Muslim apostates to Catholic Christianity.
Catholicism was introduced in Italian Somaliland in the late 19th century. Initially, it was only practiced by the few Italian immigrants in Mogadishu and the Shebelle River farmer areas, thanks to some missionaries of the Trinitarian Fathers.
After World War I, many Bantus, the descendants of former slaves, became Catholics. They were principally concentrated in the Villaggio Duca degli Abruzzi and Genale plantations.
In 1895, the first 45 Bantu slaves were freed by the Italian colonial authorities under the administration of the chartered Catholic company Filonardi. The former were later converted to Catholicism. Massive emancipation and conversion of slaves in Somalia only began after the anti-slavery activist Father Robecchi Bricchetti informed the Italian public about the local slave trade and the indifferent attitude of the Italian colonial government toward it.