From Church Latin, a feminine form of the boy's name Angelus (see Angel). The older feminine form Angelis has been completely superseded by Angela, which increased greatly in popularity in Britain and America from the 18th century onwards.
English and Scottish: patronymic from the personal name John. As an American family name, Johnson has absorbed patronymics and many other derivatives of this name in continental European languages. (For forms, see Hanks and Hodges 1988.)