Meaning A girl's name of English origin, it means "Jove's child. Variant of Gillian from the masculine Julian." Origin of Jillianna English +-100%Zoom level changed to 1 Popular Middle Names Natalie Pronunciation 🔊 Listen Jillianna Similar Names Jilian Jilliane Jilliann Jillianne Jillanne Jillayne Jillene Jillesa Jyllina Jill Year by Year Popularity of Jillianna