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Cognomen Joannou (Joannou
, Ιωάννου
) , worldwide, is quite a rare last name. The family name Joannou is habitual in Cyprus, where it is quite a common surname, Greece, where it is quite a rare surname, and the United Kingdom, where it is a rare surname. Much less frequently, Joannou is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Joannou | Australia, Cyprus, United States, United Kingdom, South Africa |
| Ιωάννου | Greece |
Ioannou, Ioannou, Joannou, and Иоанну