Cognomen Tonnis (Tonnis 
) , worldwide, is a rare surname. The family name Tonnis is characteristic of Estonia, where it is quite a rare surname, Latvia, where it is a rare surname, and Netherlands. In absolute terms, it most frequently occurs in the United States, Netherlands, and Estonia. Also, Tonnis is the forename as well as the last name.
| jan tonnis (b. 1607) |
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christiaan tonnis German artist, DE (b. 1956) |
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