Jónasson is a surname of Icelandic origin, meaning "son of Jónas". In
Icelandic names the name is not strictly a surname, but a patronymic. The name refers to:
Hermann Jónasson(1896–1976), Icelandic politician; prime minister of Iceland 1934–42 and 1956–58
Kristján B. Jónasson(contemporary), Icelandic book publisher
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