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2025 data, released 8 May 2026

Sydnee

Sydnee was the 7852nd most popular name for girls in 2025, given to 14 babies. Its best year was 1999, when it ranked 540th; the most babies were born in 2003 (506). Over the last ten years it has moved down 5,794 places. More babies were named Sydnee in the 2000s than in any other decade.

Meaning (as Sydney) wide island (English place name) · Old English

Rank in 2025
#7,852 girls, down 4,253 places since 2020
Babies in 2025
14girls
Girls and boys
Almost always a girl’s name2021–2025
Peak year
2003506 babies
Total since 1880
8,255babies recorded

What does the name Sydnee mean?

Sydnee is a spelling of Sydney, pronounced the same way, so it shares Sydney's meaning and origin.

Sydney is a spelling of the English surname Sidney. Wiktionary derives it from a place in Surrey, Old English sīd, "wide", and ēg, "island" or dry ground in a marsh. Bardsley (1901) accepted the older story that the family came from Saint-Denis in France; modern sources no longer support that. The cities in Australia and Canada are named after Viscount Sydney, not directly for the meaning.

sīd (Old English, “wide”)ēg (Old English, “island, raised land in marsh”)

How sure is this? Probable.

Other explanations you may read: contraction of Saint-Denis.

Related names: Sidney, Syd, Sydnee.

See also: English names, names that mean meadow, hill or valley, names from places.

Sources for this meaning

Sydnee popularity since 1880

02505007501k 1900192019401960198020002020
Girls Babies per year, US, from Social Security records. Years with fewer than 5 babies show as zero.
YearRank (girls)Babies (girls)
2025#7,85214
2020#3,59942
2010#959268
2000#540482
1990#1,370116
1980#8,0738
1970——
1960#7,1885
1950#4,6927
1940——
1930——
1920——
1910——
1900——
1890——
1880——

How popular is Sydnee, counting every spelling?

Sydnee is a spelling of Sydney, a name family that ranked #361 for girls in 2025 once every spelling is counted together, compared with #7,852 for Sydnee on its own. Together these spellings went to 913 girls in 2025.

SpellingBabies 2025Official rankBabies 2021–2025
Sydney873#3485,380
Sydnee14#7,852112
Cydney9#10,27377
Sydnie9#10,82471
Sydni8#11,81660

Spellings count together when they sound the same in American English and are used for the same sex; nicknames and forms that sound different (such as Theo and Theodore) are kept apart. How we group spellings.

How many kids will share the name Sydnee?

14 of the 3,606,400 babies born in the US in 2025 were named Sydnee (0.00 per 1,000 births). For a girl named Sydnee born in 2025, the chance that another child with the same name is in a class of 20 children the same age is under 1 in 50. If every grade liked the name as much as the 2025 babies do, only about one elementary school in 596 (of 430 pupils) would have a child named Sydnee.

Chance of another Sydnee in a class of 20under 1 in 50US, born 2025

Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.

How old are people named Sydnee?

About 8,100 people born in the US named Sydnee are alive today, with a median age of 24; half are between 18 and 28. That makes Sydnee mostly worn by children and young adults.

0–910–1920–2930–3940–4950–5960–6970–7980–8990+
Estimated people alive in the US with the name, by age, mid-2026. The darker bar holds the median age.

Babies given the name each year (SSA) times the share of that birth year still alive (SSA life tables). Counts people born in the US only. Method.

Sydnee by state

How common Sydnee was among girls born in each state in 2021–2025. In 50 states fewer than five girls a year got the name, too few for SSA to publish, so those states show as zero.

Alaska: fewer than 5 a yearAK–Maine: fewer than 5 a yearME–Wisconsin: fewer than 5 a yearWI–Vermont: fewer than 5 a yearVT–New Hampshire: fewer than 5 a yearNH–Washington: fewer than 5 a yearWA–Idaho: fewer than 5 a yearID–Montana: fewer than 5 a yearMT–North Dakota: fewer than 5 a yearND–Minnesota: fewer than 5 a yearMN–Illinois: fewer than 5 a yearIL–Michigan: fewer than 5 a yearMI–New York: fewer than 5 a yearNY–Massachusetts: fewer than 5 a yearMA–Oregon: fewer than 5 a yearOR–Nevada: fewer than 5 a yearNV–Wyoming: fewer than 5 a yearWY–South Dakota: fewer than 5 a yearSD–Iowa: fewer than 5 a yearIA–Indiana: fewer than 5 a yearIN–Ohio: fewer than 5 a yearOH–Pennsylvania: fewer than 5 a yearPA–New Jersey: fewer than 5 a yearNJ–Connecticut: fewer than 5 a yearCT–Rhode Island: fewer than 5 a yearRI–California: fewer than 5 a yearCA–Utah: fewer than 5 a yearUT–Colorado: fewer than 5 a yearCO–Nebraska: fewer than 5 a yearNE–Missouri: fewer than 5 a yearMO–Kentucky: fewer than 5 a yearKY–West Virginia: fewer than 5 a yearWV–Virginia: fewer than 5 a yearVA–Maryland: fewer than 5 a yearMD–Delaware: fewer than 5 a yearDE–Arizona: fewer than 5 a yearAZ–New Mexico: fewer than 5 a yearNM–Kansas: fewer than 5 a yearKS–Arkansas: fewer than 5 a yearAR–Tennessee: fewer than 5 a yearTN–North Carolina: fewer than 5 a yearNC–South Carolina: fewer than 5 a yearSC–District of Columbia: fewer than 5 a yearDC–Oklahoma: fewer than 5 a yearOK–Louisiana: fewer than 5 a yearLA–Mississippi: fewer than 5 a yearMS–Alabama: fewer than 5 a yearAL–Georgia: fewer than 5 a yearGA–Hawaii: fewer than 5 a yearHI–Texas: 0.02 per 1,000 babiesTX0.02Florida: fewer than 5 a yearFL–
Babies per 1,000 of the same sex, Sydnee, girls, 2021–2025. Darker means more common.

Names with a similar history

These names rose and fell in step with Sydnee: their share of US girls followed the most similar curve since 1880. If you like Sydnee, they share its era and feel.

Questions about the name Sydnee

What does Sydnee mean?

Sydnee is a spelling of Sydney, which means “wide island (English place name)” (Old English origin). Certainty: probable.

How popular is the name Sydnee?

Sydnee was the 7852nd most popular name for girls in 2025, given to 14 babies. Its best year was 1999, when it ranked 540th; the most babies were born in 2003 (506). Over the last ten years it has moved down 5,794 places. More babies were named Sydnee in the 2000s than in any other decade.

Is Sydnee a boy or girl name?

In 2021–2025, almost always a girl’s name given the name Sydnee in the US.

Where is Sydnee most popular?

In 2021–2025, Sydnee was most common in Texas (0.02 per 1,000 girls).