Rising since 2011, #8,243 for boys today.
Popularity of Kaii since 2001
Babies named Kaii per year in U.S. Social Security records.
Data table (by decade)
| Decade | Girls | Boys |
|---|---|---|
| 2000s | 0 | 5 |
| 2010s | 6 | 46 |
| 2020s | 0 | 62 |
Meaning & origin
Kaii is a modern spelling variant of the name Kai, first recorded in U.S. data in 2001. It has been on a rising trajectory since 2011, with its peak year in 2023. Despite its rarity, ranked 8,243 in 2025 and occurring in about 1 in 189,786 births, its growth reflects contemporary naming trends that favor brief, vowel-rich names and alternative spellings. As a relatively recent coinage, Kaii has not yet become associated with any particular region or demographic within the United States, and its meaning remains tied to the multiple origins of its root name Kai.
Kaii is a modern respelling or variant of the name Kai, which itself has multiple origins and meanings across different cultures. The doubling of the letter 'i' likely follows a contemporary pattern of respelling names with unique or stylized spellings. The name first appeared in U.S. Social Security records in 2001 and has seen steady growth in usage, particularly since the early 2010s, reflecting a broader trend of short, vowel-heavy names.
Nicknames & variants
Variants: Kai
Sibling names for Kaii
Names that share Kaii's style, for a brother or sister.
