Meaning and history
Gillian is a medieval English feminine form of Julian. This spelling has been in use since the 13th century, although it was not recognized as a distinct name from Julian until the 17th century.
20062006: 362 births, rank #758
2007: 366 births, rank #790
2008: 339 births, rank #834
2009: 251 births, rank #1,037
2010: 211 births, rank #1,153
20112011: 188 births, rank #1,266
2012: 166 births, rank #1,392
2013: 120 births, rank #1,725
2014: 125 births, rank #1,684
2015: 120 births, rank #1,743
20162016: 105 births, rank #1,908
2017: 81 births, rank #2,283
2018: 88 births, rank #2,145
2019: 59 births, rank #2,814
2020: 52 births, rank #3,061
20212021: 51 births, rank #3,157
2022: 52 births, rank #3,123
2023: 51 births, rank #3,181
2024: 52 births, rank #3,081
20252025: 47 births, rank #3,296
Gillian moved from #790 to #835 for girls between 2007 and 2008. Its highest annual birth count came in 1999, with 1,022 births.