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Sydnee

#7,850 in 2025Girls' name

Variant of Sydney

Sydnee has been given to 8,255 babies in the U.S. since 1945. In 2025 it ranked #7,850 of 17,293 girls’ names in use. Its peak year was 2003, with 506 recorded.

Babies named Sydnee, 2025

1 in 237,000

Sydnee over time, 1880–2025

Girls
020040060018801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Sydnee: meaning, origin, and history

Variant of Sydney

Deeper origin not confirmed in the cited records

What Sydnee means

Sydnee is a variant of Sydney.

Related names and everyday forms

Related names include Sydney.

American usage and historical context

In the United States, 8,255 girls were recorded with the name Sydnee between 1945 and 2025. Its highest annual count was 506 in 2003; its best national rank was #540 in 1999.

Over 5 years its rank fell, from #3,599 in 2020 to #7,850 in 2025. Over 10 years its rank fell, from #2,058 in 2015 to #7,850 in 2025.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

How common is Sydnee?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 237,000
14 of 3,315,165 births
Among girls only
1 in 115,000
<0.01% of girls
Rank, 2025
#7,850
of 17,293 girls’ names in use
Coin-flip room size
164,137 kids
Even odds of a second one

Where Sydnee sits on the popularity scale

Rarest published (5 a year)#1 — Olivia (13,544)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 500Under 1%

Put another way: gather 164,137 children born in 2025 and it's an even bet that one of them is another Sydnee. In a class of 30 the chance is Under 1%.

When Sydnees were born

Half of everyone ever recorded as Sydnee was born before 2002 — so the typical Sydnee is around 23 today.

Median birth year
2002
About 23 years old
Biggest decade
2000s
46.5% of all use
Born in the last 25 years
59.2%
A modern name
Recorded since 1950
8,243
People you could plausibly meet
Choose a decade

2000s — 46.5% of all recorded uses (3,842).

Is Sydnee rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
+1,640
Places climbed
Rank vs 5 years ago
−4,251
Places dropped
Rank vs 10 years ago
−5,792
Places dropped
Births vs 10 years ago
0.15×
Fewer babies than then
Share of its own peak
2.8%
Peak was 2003 (506)
Years since peak
22
Years
Year-to-year steadiness
Shifting
17.4% average annual change
Best rank ever
#540
1999

Spellings of Sydnee

Sydnee is not the most common spelling — Sydney is, with 76.2% against Sydnee's 3.5%.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Where Sydnee is used

Across 2016–2025, Sydnee was most concentrated in Louisiana — about 1 in 25,000 girls, against 1 in 55,234 across all states with data. It was least common in Pennsylvania (1 in 100,000).

14 per 100,000

Most concentrated

  1. 1Louisiana1 in 25,000
  2. 2Oklahoma1 in 25,000
  3. 3Ohio1 in 33,333
  4. 4Utah1 in 33,333
  5. 5Arizona1 in 50,000
  6. 6Texas1 in 50,000
  7. 7California1 in 100,000
  8. 8Florida1 in 100,000

Shading is the share of that state's recorded girls given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings.

Sydnee around the world

Where Sydnee ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • England & Wales
    1996–2021
    #5,581
    in 2021
  • Canada
    1991–2014
    #2,567
    in 2014
  • South Australia
    2000–2013
    #818
    in 2013

Popularity data from Office for National Statistics, Statistics Canada and Consumer and Business Services (South Australia). ONS data under Open Government Licence v3.0. StatCan data under Statistics Canada Open Licence. CBS SA data under CC BY 4.0.

Notable people named Sydnee

People whose public names include Sydnee, backed by Wikidata given-name records and ordered by linked Wikimedia pages. The name may be a middle name.

People data from Wikidata (CC0). Fame is measured, not judged — the order reflects how widely each person is documented, not the U.S. birth records popularity this page is otherwise about.

Sydnee in other languages

Cross-language forms and variants of Sydnee. Linked forms have their own page here.

SidneySidnieSydney

Variant forms from Wikidata (CC0). Most are used mainly outside the United States; U.S. birth records statistics cover US usage only.

Sydnee by the numbers

The raw record for each sex the name is used for.

As a girl's name

Rank in 2025
#7,850
Trend vs 5 yrs ago
Down 4,251
Best rank ever
#540
1999
Peak year
2003
506 that year
First recorded
1945
Last recorded
2025
All-time count
8,255
Count in 2025
14

Names similar to Sydnee

Matched on shared beginnings and endings, similar length, and comparable popularity.

SydnieSydniJurneeLayneeJourneeLaineeJaneeSydneySydelleDestineeJayneeRaineeSydneiSydellShawneeRayneeEboneeShaneeSydneHarmoneeCydneeJeneeTahneeBritnee

Names with a curve like Sydnee

Not spelling — timing. These names rose, peaked and faded in the same years as Sydnee, so they read as being from the same moment even when they look nothing alike.

ShyanneShyannKayleyDestineySavanaKaylahKayliDestiniSavanahMadisenDasiaCaitlynn

Sibling names for Sydnee

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Sydnee

Top names of 2003, Sydnee's peak yearThe 2000s in fullOther names that peaked in 1999Girls' names starting with S