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Last name Jahnson (Jahnson ) , worldwide, is a rare cognomen. The family name Jahnson is characteristic of Northern Europe, particularly Estonia, where it is quite a rare surname, Sweden, where it is a rare surname, and Norway. In absolute terms, it is the most numerous in Tanzania, Sweden, and the United States. Also, Jahnson is the forename as well as the last name.
VARIANT | COUNTRY |
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Jahnson | Tanzania, Sweden, Poland, United States, India |