Jillyan is a feminine name with English origins. It is pronounced as JIL-ee-an (/ˈdʒɪliˌæn/). This name is a variation of the more common name, Jillian. In terms of popularity, Jillyan has been given to a small number of newborn girls in the United States. According to data from recent years, there were 6 occurrences in 2014 and 6 occurrences in 2013. The name reached its peak popularity in 2008, when it was given to 15 baby girls. Jillyan is a unique and beautiful choice for parents looking for an alternative to the more traditional Jillian.