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 (#11068 out of 88799, Top 12%). (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 and are somewhat less popular today, with the forms Julianne, Jill and Gillian 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)