Christian abbesses

Kassia, Cassia, Kassiane, or Kassiani (, ; – c.865) was a Byzantine-Greek composer, hymnographer and poet. She holds a unique place in Byzantine music as the only known woman whose music appears in the Byzantine liturgy. Approximately fifty of her hymns are extant, most of which are stichera, though at least 26 have uncertain attribution. The authenticity issues are due to many hymns being anonymous, and others ascribed to different authors in different manuscripts. She was an abbess of a convent in the west of Constantinople.

oldest daughter of King Henry of Saxony, consort of Giselbert of Lorraine and Louis IV of France

Belarusian saint and abbess

Princess of Saxony and Poland, abbess of Essen and Thorn (1740–1826)

Ecuadorian abbess (1563–1635)

Landrada of Austrasia (also called Leandra, died between and 708) was a German saint and ascetic. She co-founded Munsterbilsen Abbey, which was dedicated to the Virgin Mary. Landrada's feast day is 8 July. She is the patroness saint of Munsterbilsen and Ghent.

abbess of Fraumünster, daughter of Louis the German

abbess of Rijnsburg abbey