Sibling names for Sebastian
Names that sound like they belong in the same family as Sebastian usually share its era. These sister and brother names rose and fell on a similar curve to Sebastian, whose busiest decade was the 2010s, and are about as common, so neither child's name will feel dated or unusual next to the other.
Sister names for Sebastian
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Genesis | origin, beginning | #66 | 17,832 | 2010s |
| Alina | #130 | 10,437 | 2010s | |
| Mia | pet form of Maria | #6 | 56,885 | 2010s |
| Nyla | #236 | 6,490 | 2010s | |
| Kennedy | #85 | 15,418 | 2010s | |
| Liliana | lily | #78 | 14,345 | 2010s |
| Presley | priest's clearing (place name) | #225 | 6,977 | 2010s |
| Riley | #48 | 23,880 | 2000s | |
| Amaya | #180 | 8,805 | 2010s | |
| Harmony | harmony | #276 | 6,530 | 2010s |
| Avery | from Alfred: elf + counsel | #37 | 29,870 | 2010s |
Brother names for Sebastian
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Leonardo | lion-strong | #91 | 20,257 | 2010s |
| Holden | deep valley (surname) | #297 | 6,251 | 2010s |
| Josiah | healed or supported by God | #54 | 28,435 | 2010s |
| Wyatt | from Wigheard: war + hardy | #38 | 34,591 | 2010s |
| Tucker | cloth fuller (surname) | #181 | 9,675 | 2010s |
| Braxton | #172 | 11,430 | 2010s | |
| Lukas | man from Lucania (form of Lucas) | #288 | 7,079 | 2010s |
| Phoenix | phoenix (mythical bird) | #329 | 6,309 | 2010s |
| Xander | defender of men (short form of Alexander) | #259 | 8,636 | 2010s |
| Bryson | #152 | 13,153 | 2010s | |
| Maximiliano | from Maximilian (Latin 'greatest') | #280 | 5,917 | 2010s |
Sebastian's era
Sebastian ranked #16 for boys in 2025, against #35 in 2015. Its best year was 2022, at #13. A sibling name from the same wave will sound like it was chosen by the same parents; a name from an older or newer wave can make one child's name feel dated next to the other's.
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, Sebastian included.
Girls: Elizabeth, Maria, Lydia, Cecilia, Julia, Miriam. Boys: Anthony, Wesley, Vincent, Calvin, Victor, Oscar.
Same era, but close to Sebastian
These names follow Sebastian's curve too, but we left them out above because they share a first letter or an ending with Sebastian. Some parents like that echo; if you do, start here.
How these were chosen
Each suggestion's share of US babies has followed a curve close to Sebastian's since 1880, and its recent number of babies is within about twelve times Sebastian's, so the names are in the same league. Names starting with the same letter as Sebastian or with the same ending are left out, so the names go together without matching. Spellings of Sebastian itself are excluded.