Sibling names for Alex
Names that sound like they belong in the same family as Alex usually share its era. These sister and brother names rose and fell on a similar curve to Alex, whose busiest decade was the 1990s, and are about as common, so neither child's name will feel dated or unusual next to the other.
Sister names for Alex
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Emily | from the Roman family name Aemilius | #34 | 30,704 | 1990s |
| Clarissa | "bright, clear" | #1,114 | 1,152 | 1990s |
| Carolina | feminine of Charles ('man') | #405 | 3,490 | 2000s |
| Victoria | victory | #54 | 22,257 | 1990s |
| Mercedes | "mercies" (Our Lady of Mercy) | #1,439 | 849 | 1990s |
| Molly | pet form of Mary | #196 | 7,576 | 1990s |
| Marina | of the sea (Latin) | #602 | 2,328 | 1990s |
| Guadalupe | Our Lady of Guadalupe (place name) | #1,248 | 1,162 | 2000s |
| Hannah | grace, favor | #56 | 21,258 | 1990s |
| Madeline | woman of Magdala (via Madeline) | #81 | 14,188 | 2000s |
Brother names for Alex
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Jake | pet form of Jack (John) or Jacob | #457 | 3,971 | 2000s |
| Spencer | steward, dispenser of provisions | #360 | 4,696 | 1990s |
| Grant | large, tall (nickname) | #228 | 8,016 | 2000s |
| Nathaniel | God has given | #140 | 13,158 | 2000s |
| Jacob | heel (biblical explanation) | #43 | 35,869 | 1990s |
| Francisco | Frenchman, Frank | #322 | 5,605 | 1990s |
| Pedro | stone, rock (Spanish form of Peter) | #455 | 3,738 | 1990s |
| Jesus | God saves | #173 | 10,941 | 2000s |
| Benjamin | #11 | 52,658 | 1980s | |
| Juan | God is gracious (Spanish form of John) | #159 | 12,505 | 2000s |
Alex's era
Alex ranked #232 for boys in 2025, against #134 in 2015. Its best year was 1995, at #47. 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, Alex included.
Girls: Elizabeth, Maria, Lydia, Cecilia, Julia, Miriam. Boys: Samuel, Wesley, Vincent, Calvin, Victor, Oscar.
Same era, but close to Alex
These names follow Alex's curve too, but we left them out above because they share a first letter or an ending with Alex. 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 Alex's since 1880, and its recent number of babies is within about twelve times Alex's, so the names are in the same league. Names starting with the same letter as Alex or with the same ending are left out, so the names go together without matching. Spellings of Alex itself are excluded.