Jillianna \j(il)-lianna, jill(ian)-na\ as a girl's name is a variant of Jillian. See for origin and meaning of Jillianna.

The baby name Jillianna sounds like Jillianne, Gillianna, Jillyanna, Jilliann and Jilliana. Other similar baby names are Dillianna and Lillianna.