Guiliana is an Italian name derived from the male name Guglielmo, which is itself of Germanic origin meaning 'will' and 'helmet'. It has been used as a female name since the Middle Ages, likely due to its attractive sound rather than any specific association with Guglielmo. Guiliana is quite rare today, but it can be found occasionally in Italy and other countries where Italian names are popular.
The name Guiliana experienced a significant peak in popularity between 2009 and 2010, with a remarkable increase from 36 to 64 births in those two years alone. However, the number of births with this name has been steadily declining since then, reaching a low of 7 births in 2021, and stabilizing at 12 births annually from 2020 onwards. Over the entire period from 1993 to 2023, there have been a total of 515 babies named Guiliana.