Jilliann is an uncommon yet beautiful feminine given name, derived from the Gaelic 'Seilinn', which means 'God is gracious'. The name gained prominence in the United States during the late 20th century but remains relatively rare today. Spelling variations include Jillianne and Jilliane. It's composed of two elements: 'Gill', meaning 'joyful' or 'bright', and 'ann', meaning 'grace'. Therefore, Jilliann can be interpreted as 'bright grace' or 'joyful grace'. The name Jilliann offers a unique and elegant choice for parents seeking an uncommon yet meaningful name for their daughter.
"Jilliann experienced a significant rise in popularity from 2000 onwards, with peaks of 17 births in 2000 and 13 or more births annually until 2004. However, it has since declined, reaching a low of just 5 births in both 2015 and 2016."