The female name Hildegard derived from the Old High German words hild (=war or battle) and gard (=protection) and means "protecting battle-maid". Variant spellings include Hildegarde. The Polish, Portuguese, Slovene and Spanish version is Hildegarda; the Italian version is Ildegarda. Hildegárd is a Hungarian version. An ancient German version of the name was Hildegardis.
Notable persons
- Hildegard of Bingen (1098–1179), a Christian saint
- Hildegard, wife of Charlemagne, the second wife of Charlemagne
- Hildegard, daughter of Louis or Matilda, the daughter of Emperor Louis the Pious and Ermengarde of Hesbaye
- Hildegard Behrens (1937–2009), a German opera singer
- Hildegard Falck (born 1949), a German middle distance runner and Olympic medalist
- Hildegarde Howard (1901–1998), an American paleornithologist
- Hildegard Knef (1925–2002), a German actress, singer and writer
- Hildegard Körner (born 1959), an East German middle distance runner and Olympic competitor
- Hildegarde (1906–2005), an American cabaret singer
- Hildegarde Flanner (1899–1987), an American poet and activist
- Hildegarde Dolson Lockridge (1908–1981), a poet, playwright and novelist
- Hildegarde Naughton, an Irish politician and mayor of Galway
- Hildegart Rodríguez Carballeira, a girl raised to be the perfect woman
- Hildegard Werner, a Swedish musician
Notable fictional characters
- Hildegarde (Marvel Comics), a Valkyrie
- Hildegarde Withers, in novels and films
- Hildegard von Krone, from the Soul series of fighting games
- Hildegarde T., from the anime and manga series Beelzebub (manga) by Ryūhei Tamura
- Hildegarde, in the Johann Strauss operetta Simplicius
- Hildegard 'Hildy' Johnson, from 1940 American comedy film His Girl Friday