Jillianna is a melodic name of Latin origin, derived from the feminine form of Julius, which means 'youthful'. It's a variant spelling of Jilliana and Gilliana, offering a unique twist on a classic name structure. The use of two 'l's and two 'n's gives it a distinct rhythm and flow, making it stand out among its contemporaries.
"Jillianna's popularity peaked around the late 2000s to early 2010s with notable years being 2009 and 2010, totaling 16 births combined. However, it seems to have declined since then, with only 5 or fewer births per year from 2014 onwards."