Declining since 2008, #5,722 for girls today.
Popularity of Kaydee since 1974
Babies named Kaydee per year in U.S. Social Security records.
Data table (by decade)
| Decade | Girls |
|---|---|
| 1970s | 36 |
| 1980s | 265 |
| 1990s | 487 |
| 2000s | 840 |
| 2010s | 645 |
| 2020s | 144 |
Meaning & origin
Kaydee first appeared in U.S. birth records in 1974, part of a wave of phonetic respellings that gained momentum in the late 20th century. The name saw its highest usage in 2009, when it ranked 5,722 nationally. Since 2008, its trajectory has been falling, reflecting a broader shift away from creative spellings of traditional names. For every 76,537 newborns in 2025, one is named Kaydee. The name has no strong regional concentration within the United States. As a modern invention, Kaydee exemplifies the American impulse toward individualized orthography, taking the familiar sound 'Katie' and giving it a fresh, distinctive look. While its literal meaning is derived from Katherine, its cultural significance lies in its modernity and phonetic creativity.
Kaydee is a phonetic respelling of Katie, itself a diminutive of Katherine. The name Katherine has Greek origins from 'katharos' meaning 'pure'. While historically a common nickname, the -dee ending is a modern spelling innovation that emerged in the late 20th century, particularly in the United States, as part of a trend toward unique spellings.
Nicknames & variants
Nicknames: Kaye, KD
Sibling names for Kaydee
Names that share Kaydee's style, for a brother or sister.

