Declining since 1998.
Popularity of Cydnee since 1949
Babies named Cydnee per year in U.S. Social Security records.
Data table (by decade)
| Decade | Girls |
|---|---|
| 1940s | 8 |
| 1950s | 19 |
| 1960s | 0 |
| 1970s | 16 |
| 1980s | 50 |
| 1990s | 360 |
| 2000s | 332 |
| 2010s | 159 |
| 2020s | 9 |
Meaning & origin
Cydnee is a respelling of Sydney that emerged as a feminine given name in the late 20th century. The name first appeared in U.S. birth records in 1949, but its popularity peaked in 1997, after which it began a steady decline. Despite never ranking in the top 1000 names nationally, Cydnee reflects the trend of creative spelling variants that flourished in the 1990s, particularly among American parents seeking a unique twist on familiar names. The absence of any top state data indicates its usage was sporadic rather than regionally concentrated. Today, Cydnee remains a rare choice, overshadowed by the standard spellings Sydney and Sidney.
Cydnee is a modern respelling of Sydney, which itself originated as a surname derived from an English place name. The place name Sydney may come from Old English sid 'wide' and ēg 'island', or from sūþ 'south' and wīc 'dwelling'. As a given name, Sydney gained popularity in the 20th century, and Cydnee emerged as a creative variant in the late 20th century.
Nicknames & variants
Nicknames: Cyd, Syd
Sibling names for Cydnee
Names that share Cydnee's style, for a brother or sister.

