Sibling names for Onyx
Names that sound like they belong in the same family as Onyx usually share its era. These sister and brother names rose and fell on a similar curve to Onyx, whose busiest decade was the 2020s, and are about as common, so neither child's name will feel dated or unusual next to the other.
Sister names for Onyx
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Navy | navy (the color or the fleet) | #327 | 4,063 | 2020s |
| Xyla | #763 | 1,481 | 2020s | |
| Indie | #634 | 2,414 | 2020s | |
| Renley | #1,314 | 826 | 2020s | |
| Kaylani | sea and sky (variant of Kailani) | #185 | 6,578 | 2020s |
| Collins | son of Colin; Irish Ó Coileáin | #241 | 6,032 | 2020s |
| Sevyn | seven (respelled number word) | #575 | 2,526 | 2020s |
| Eliette | #1,245 | 795 | 2020s | |
| Palmer | pilgrim | #232 | 5,758 | 2020s |
| Salem | #436 | 3,477 | 2020s | |
| Marigold | Mary's gold (flower) | #590 | 1,898 | 2020s |
Brother names for Onyx
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Avyaan | #858 | 1,562 | 2020s | |
| Mazi | #1,242 | 795 | 2020s | |
| Eydan | #1,670 | 586 | 2020s | |
| Luka | Italian form of Luke | #85 | 17,750 | 2020s |
| Riggs | #776 | 1,783 | 2020s | |
| Jrue | #817 | 1,260 | 2020s | |
| Colson | son of Coll (Nicholas) | #311 | 5,082 | 2020s |
| Kymir | #1,385 | 624 | 2020s | |
| Jiraiya | Japanese folk hero (from a Chinese tale) | #990 | 1,448 | 2020s |
| Kylo | #402 | 3,728 | 2020s | |
| Zyaire | #317 | 4,946 | 2020s | |
| Wilder | #431 | 4,091 | 2020s |
Onyx's era
Onyx ranked #365 for boys in 2025, against #1,426 in 2015. Its best year was 2023, at #307. Names that rose and fell with it share its period feel, which keeps the set consistent.
Timeless names that go with any sibling
These names have been used steadily for a hundred years, so they sit comfortably next to a name from any era, Onyx included.
Girls: Elizabeth, Maria, Lydia, Cecilia, Julia, Miriam. Boys: Samuel, Anthony, Wesley, Vincent, Calvin, Victor.
Same era, but close to Onyx
These names follow Onyx's curve too, but we left them out above because they share a first letter or an ending with Onyx. Some parents like that echo; if you do, start here.
- Oaklynn same first letter as Onyx
How these were chosen
Each suggestion's share of US babies has followed a curve close to Onyx's since 1880, and its recent number of babies is within about twelve times Onyx's, so the names are in the same league. Names starting with the same letter as Onyx or with the same ending are left out, so the names go together without matching. Spellings of Onyx itself are excluded.