Family name הילדגרד (Hildegard 
, הילדגרד 
) , in the entire world, is quite a rare cognomen. The last name הילדגרד is habitual in Austria, where it is quite a rare surname, Israel, where it is a rare surname, and Spain. In absolute terms, it is the most numerous in Spain, Germany, and Poland. Predominantly, הילדגרד is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hildegard | Italy, Brazil, United States, Austria, Germany |
| הילדגרד | Israel |