Jillian is a female name.
Jillian is a variant of the name Gillian, which is a feminine form of the name Julian and is existing since the 17th century.
Jillian means “of the Julius family” and “dedicated to Jupiter” (from Latin “iovilius”).
Make sure you don't miss any baby name with our free app CharliesNames. Download it now and find the most amazing names! :)