Declining since 2020, #6,143 for boys today.
Popularity of Kastiel since 2012
Babies named Kastiel per year in U.S. Social Security records.
Data table (by decade)
| Decade | Boys |
|---|---|
| 2010s | 118 |
| 2020s | 99 |
Meaning & origin
Kastiel is a modern American invention, first appearing on U.S. birth records in 2012. The spelling with a 'K' reflects a broader trend of stylized respellings. The name's popularity peaked in 2021, and its trajectory has been falling since 2020. Though it resembles the angelic name Cassiel, no direct connection has been established. Despite a low overall rank of 6,143 in 2025, with a frequency of 1 in 122,005 births, Kastiel remains a distinctive choice for parents seeking a name with contemporary flair and subtle fantastical undertones.
Kastiel first appeared in U.S. records in 2012. It is likely a respelling of Castiel, a name that gained exposure through the television character Castiel from Supernatural (2008-2020). The spelling with 'K' follows a trend of substituting 'C' with 'K' for a distinct look. No traditional etymology or meaning is attested.
Nicknames & variants
Nicknames: Kas, Kast, Kiel
Variants: Castiel
Sibling names for Kastiel
Names that share Kastiel's style, for a brother or sister.

