US Popularity Rank: None

Origin: German

Meaning: Pledged to God; God's promise; God is my oath

Illsa is a variant form of Ilsa, which is a girl’s name of German, Spanish, and Dutch origin that means “pledged to God,” “God’s promise,” or “God is my oath.” Ilsa is also related to the Hebrew names Elisabeth and Elizabeth. It makes a captivating choice if you want a name for baby that combines tradition with a touch of distinctiveness. Some possible nicknames for Illsa are Ili, Lsa, or Lili.