The diversification of religion is a worldwide phenomenon that has also reached Portugal, where promoting intercultural and interreligious dialogue is a key priority for the High Commission for Migration.

Using data from the country's 2021 Census, this analysis looks at the religious composition of the main foreign nationalities residing in Portugal. For some, it is possible to identify a majority religion: this is the case among those from Cape Verde, for example, where 78% are Catholic. 65% of those from São Tomé and Príncipe are Catholic; 64% of those from Spain; 60% of those from Italy and 52% of those from Angola. 77% of Romanians and 70% of those from Ukraine are Orthodox Christian, and 75% of those from Nepal are Hindu.

Among other foreign residents there is a marked overrepresentation of people following no religion. This particularly true of those from China (59%), Germany (49%) and the United Kingdom (49%). There are also foreign resident groups wherein the proportion of those following a certain religion is greater than the corresponding proportion of the foreign population as a whole. Hindus make up 45% of those from India, for example, Muslims make up 35% of those from Guinea-Bissau, those followjng other non-Christian religions represent 34% of Indians, Buddhists make up 29% of those from China and 16% of those from Nepal, and Jehovah's Witnesses make up 7% of Angolans.