This study analyzed the degree of loneliness, as well acculturation and adaptation factors related to it among African migrants. The sample consisted 759 migrants (48.5% females) from four ethnocultural groups (Angolans, Cape Verdeans, Guineans, Mozambicans) living in Portugal. Participants’ mean age was 37 years, length sojourn this country 21 years. Participants completed self-reported questi...