Isabella is the Italian and Spanish form of Elizabeth and means "God is my oath" or "devoted to God", from the Hebrew Elisheva. Medieval queens of Spain, France and England carried the name, and the Twilight novels gave it a huge push in the 2000s. In the United States Isabella has been a top 10 name since 2004, was number one in 2009 and 2010 and ranks seventh in 2025.