There are multiple origins and meanings for the name Idelia:
1. Spanish version of the Proto-Germanic name Edel significance - "noble, precious, fine, aristocratic, gallant, regal"
2. Derived from the Latin word idealis means - "ideal; existing in idea"
3. Turkic (Tatar Иделия) name, feminine form of the name Idel → Turkic name of the river Volga.