Sibling names for Knox
Names that sound like they belong in the same family as Knox usually share its era. These sister and brother names rose and fell on a similar curve to Knox, 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 Knox
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Emery | #74 | 15,424 | 2010s | |
| Monroe | #467 | 2,917 | 2010s | |
| Ariyah | #367 | 4,439 | 2020s | |
| Harlow | rock hill or army hill (English place name) | #309 | 5,814 | 2020s |
| Brynleigh | #807 | 1,751 | 2020s | |
| Raelynn | #116 | 12,572 | 2010s | |
| Journee | journey (word name) | #258 | 7,102 | 2020s |
| Willow | the willow tree | #44 | 24,467 | 2020s |
| Layan | softness, gentleness | #831 | 1,237 | 2020s |
| Aadhya | first; a name of Durga | #960 | 1,277 | 2010s |
| Mila | dear, gracious (Slavic mil-) | #43 | 29,024 | 2010s |
Brother names for Knox
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Lochlan | variant of Lachlan | #644 | 1,676 | 2010s |
| Wesson | #919 | 1,293 | 2020s | |
| Beckett | #141 | 10,473 | 2010s | |
| Jensen | son of Jens (John) | #282 | 5,579 | 2010s |
| Messiah | anointed one | #207 | 9,581 | 2010s |
| Jax | short form of Jackson | #342 | 5,944 | 2010s |
| Castiel | #1,009 | 1,381 | 2010s | |
| Finley | fair warrior (from Gaelic Fionnlagh) | #333 | 5,883 | 2010s |
| Mateo | 'gift of Yahweh' (via Matthew) | #8 | 53,265 | 2020s |
| Hudson | son of Hudd (surname) | #17 | 40,102 | 2010s |
Knox's era
Knox ranked #196 for boys in 2025, against #258 in 2015. Its best year was 2025, at #196. 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, Knox included.
Girls: Elizabeth, Maria, Lydia, Cecilia, Julia, Miriam. Boys: Samuel, Anthony, Wesley, Vincent, Calvin, Victor.
Same era, but close to Knox
These names follow Knox's curve too, but we left them out above because they share a first letter or an ending with Knox. 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 Knox's since 1880, and its recent number of babies is within about twelve times Knox's, so the names are in the same league. Names starting with the same letter as Knox or with the same ending are left out, so the names go together without matching. Spellings of Knox itself are excluded.