What does Gillian mean?
Gillian \gi(l)-lian\ as a girls' name (also used as boys' name Gillian) is pronounced GILL-ee-an, JILL-ee-an. It is of Latin origin, and the meaning of Gillian is "youthful". Anglicization of Juliana. A common name in the Middle Ages. Actress Gillian Anderson.
For more on this name, see also the related girl name Jill.
Gillian is a very prominent first name for women (#1252 out of 4276, Top 29%) and also a very prominent last name for all people (#11917 out of 150436, Top 8%). (2000 U.S. Census)
Presented below is the birth name popularity of Gillian for girls. Gillian entered the list in 1980-1989 and reached its peak rank of #303 in the U.S. in the year 1999, but is not listed currently. (2014 Birth Statistics)
Popular related forms of Gillian ranked in the Top 1000 are Juliana (#157 a year ago), Julianna (#185), Giuliana (#373), Jillian (#385), Julianne (#901), Jill and Juliann. These girl names were at the apex of their popularity in the year 1998 (usage of 0.4681%) and are somewhat less popular today (usage 0.3749%, down 19.9%), with the forms Julianne, Gillian and Jill becoming less in vogue. Giuliana (#373), Julianna (#185), Juliana (#157) and Jillian (#385) are four of the more trendy birth names in this list. Shown below is a comparison of the popularity of Gillian and associated names. (2014 Birth Statistics)