MallowbyNames

Sydnei

SID-nee · Wide island; or, from a place name meaning 'wide meadow'.

Peak popularity
2005
Usually for
Girls
Trend
Declining since 2005

Declining since 2005.

Popularity of Sydnei since 1988

Babies named Sydnei per year in U.S. Social Security records.

1225371990200020102020Most births 2005Girls
Data table (by decade)
DecadeGirls
1980s15
1990s208
2000s274
2010s130
2020s8

Meaning & origin

Sydnei entered the U.S. baby naming scene in 1988 as a spelling variant of the well-established name Sydney. The name reached its peak usage in 2005, and has been declining since that year. Although Sydnei has never ranked in the national top 1000, its unique spelling appealed to parents seeking a distinctive yet familiar sound. In the 2000s, when the name saw its highest use, similar pattern names like McKaylee and Jordyn were also on the rise. The -ei ending offers a modern twist on the traditional -ey ending. Today, Sydnei remains a rare choice, with fewer than a handful of births per year since the mid-2010s.

Sydnei is a respelled variant of Sydney, which derives from the Old English phrase 'sīdan ēge', meaning 'wide island', or from the place name 'Sydenham', meaning 'wide water meadow' in Old English. The spelling Sydnei emerged in the 1980s in the United States as a distinctive form of the more common Sydney. It gained moderate use in the 1990s and early 2000s, particularly for girls.

Nicknames & variants

Nicknames: Syd, Nei

Variants: Sydney, Sidney, Sydnee, Sydnie

Sibling names for Sydnei

Names that share Sydnei's style, for a brother or sister.

A parent animal hugging its little one, the personalized name page

S is for Sydnei, our favorite little girl.

S is for Sydnei…”

In a Mallowby alphabet book, Sydnei's letter becomes Sydnei's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Sydnei's book

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Questions parents ask

What does the name Sydnei mean?
Sydnei is a variant of Sydney, which means 'wide island' or 'wide meadow' from Old English origins.
How popular is the name Sydnei?
Sydnei has never ranked in the U.S. top 1000, but it has been in use since 1988. Its peak year of use was 2005, and its popularity has been declining since then.
Is Sydnei a boy or girl name?
Sydnei is most commonly used for girls, though Sydney can also be used for boys.