Sibling Names Starting With X
3 US sibling names beginning with X, each linking to scored sibling name pairings. Sorted A–Z; switch to popularity below.
- Xander Best sibling match: Onyx (90) middle names
- Xavier Best sibling match: Beckham (88) middle names
- Ximena Best sibling match: Omar (85) middle names
No names match those filters.
X names by the numbers
X names went to 6,526 US boys (0.38%) and 5,439 US girls (0.34%) born in 2025, according to Social Security records. For boys that is up from 0.09% in 1990; for girls, up from 0.03% in 1990.
| Name | For | Rank in 2015 | Rank in 2025 |
|---|---|---|---|
| Xavier | boys | #90 | #108 |
| Xander | boys | #206 | #259 |
| Ximena | girls | #125 | #183 |
If one child already has an X name, the sibling pages mark down other X names — a shared first letter makes the two harder to tell apart out loud.
Best brother or sister names for these X names
Each name's top three brother or sister matches, with the pairing score shown in brackets:
- Xander: Onyx (90), Jett (84), Cora (83). Top pick Onyx — matches Xander syllable for syllable.
- Xavier: Beckham (88), Paxton (87), Kendall (87). Top pick Beckham — an even two-syllable name, easy to say.
- Ximena: Omar (85), Santino (84), Leonel (81). Top pick Omar — more vowels than consonants — an easy, open sound.
The full list, and why each name scores the way it does, is on each name's own page.
Sibling Names starting with X
This page lists 3 sibling names beginning with the letter X that are in real current use in the United States. The count comes from US Social Security Administration public records: every name shown was given to at least a handful of US babies in the latest year, so this is not a list of invented or one-off spellings.
Open any name to see its pairing page — brother and sister names that go with it, each scored for how well it fits. Use the sort control above to switch between A–Z and 2025 popularity. To browse a different letter, go back to all sibling names.