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Cognomen Willison (Willison
) , in the entire world, is quite a common surname. The cognomen Willison is characteristic of Tanzania, where it is quite a rare surname, New Zealand, and Australia, where it is a rare surname. Measured by absolute frequency, it is commonest in Tanzania, the United States, and the United Kingdom. Very seldom, Willison is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Willison | Canada, Tanzania, Brazil, United States, United Kingdom |