Surname Sidonie-John (Sidonie-John 
) , worldwide, is a very rare cognomen. The last name Sidonie-John is habitual in Latin America and the Caribbean, particularly Antigua and Barbuda, where it is quite a common surname. Parts of the name also exists independently as a first name Sidonie, and a first name John.
| VARIANT | COUNTRY |
|---|---|
| Sidonie-John | Antigua and Barbuda |