Sydney Girl
How popular is Sydney?
#348 girl name in 2025
873 baby girls were named Sydney in the US in 2025, making it the 348th most popular girl name. Another 20 boys got the name (#4,856 for boys).
Sydney popularity over time
Boys Girls
| Rank in 2025 | #348 for girls (▼ 60 from 2024) |
|---|---|
| Babies in 2025 | 873 girls, 20 boys |
| 10-year trend | Falling fast (-67% babies vs 2015) |
| Earlier ranks | #122 in 2015, #241 in 2020 |
| Peak year | 2000 (10,243 girls) |
| Highest rank | #23 in 1999 (4 years at that rank) |
| First recorded | 1886 |
| Boys vs girls (last 10 years) | 2% boys, 98% girls |
| Chance a classmate shares it | 0.6% in a class of 25 kids born in 2025 |
Sydney counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Sydney family of names ranked #324 for girls in 2025 (#270 the year before), with 1,009 babies in all.
Spellings are grouped by how they sound, using our own rules, so a few groupings may not match how your family says the name.
Where Sydney is most popular
Babies named Sydney per 1,000 girls born in each state, 2021 to 2025. Darker means more common.
- District of Columbia: 3.5 per 1,000 (42 girls)
- Rhode Island: 2.6 per 1,000 (32 girls)
- Massachusetts: 1.5 per 1,000 (187 girls)
- South Dakota: 1.5 per 1,000 (22 girls)
- Connecticut: 1.5 per 1,000 (89 girls)
Sydney by decade
| Decade | Baby girls | Best rank |
|---|---|---|
| 1880s | 14 | #828 |
| 1890s | 23 | #1,209 |
| 1900s | 84 | #797 |
| 1910s | 265 | #1,102 |
| 1920s | 306 | #1,158 |
| 1930s | 798 | #633 |
| 1940s | 1,512 | #537 |
| 1950s | 1,522 | #594 |
| 1960s | 1,346 | #760 |
| 1970s | 929 | #1,026 |
| 1980s | 4,587 | #230 |
| 1990s | 55,756 | #23 |
| 2000s | 76,444 | #23 |
| 2010s | 28,084 | #60 |
| 2020s | 6,626 | #241 |
Girl names about as popular as Sydney
Questions
- Is Sydney a boy or girl name?
- Sydney is mostly a girl name. Over the last 10 years, 98% of babies named Sydney were girls.
- How popular is the name Sydney?
- 873 baby girls were named Sydney in the US in 2025, making it the 348th most popular girl name. Another 20 boys got the name (#4,856 for boys).
- When was Sydney most popular?
- Sydney peaked in 2000, when 10,243 girls were given the name. Its highest rank was #23, held for 4 years starting in 1999.
- How many people are named Sydney?
- 187,700 babies have been named Sydney in the US since 1880. We estimate about 178,721 of them are alive in 2026, with a median age of 24.
- Where is Sydney most popular?
- From 2021 to 2025, Sydney was most common in District of Columbia, at 3.5 of every 1,000 girls born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.