Family name Ammerer-Willibald (Ammerer-Willibald 
) , worldwide, is a very rare cognomen. The family name Ammerer-Willibald is habitual in Western Europe, particularly Austria, where it is a rare surname. Parts of the name also exists independently as a last name Ammerer, and a first name Willibald.
| VARIANT | COUNTRY |
|---|---|
| Ammerer-Willibald | Austria |