Adela is a Germanic name derived from adal, meaning "noble" or "nobility", and was borne by a daughter of William the Conqueror and by Saint Adela of Pfalzel. It is the usual form in Spanish, Polish and Czech, and Americans may know it from the Spanish-speaking world or from the old-fashioned English Adela. In the United States Adela ranked number 1456 in 2000, peaked at number 1098 in 2024 and stands at number 1151 in 2025.