Sibling names for Alonzo
Names that sound like they belong in the same family as Alonzo usually share its era. These sister and brother names rose and fell on a similar curve to Alonzo, 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 Alonzo
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Lavinia | #2,290 | 405 | 1920s | |
| Delia | "of Delos" (Artemis) | #1,561 | 709 | 1950s |
| Cordelia | #981 | 1,206 | 2010s | |
| Lydia | woman from Lydia | #92 | 13,858 | 2010s |
| Minerva | #2,112 | 423 | 1950s | |
| Daisy | daisy (the flower); also a pet form of Margaret | #75 | 13,146 | 2000s |
| Rosa | rose (Latin) | #653 | 2,269 | 1920s |
| Lucy | light (Latin root) | #25 | 25,390 | 2010s |
| Helena | #363 | 3,552 | 2010s | |
| Eva | life, living (form of Eve) | #134 | 12,288 | 1920s |
| Mina | #597 | 2,492 | 2010s |
Brother names for Alonzo
Alonzo's era
Alonzo ranked #511 for boys in 2025, against #527 in 2015. Its best year was 1880, at #110. 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, Alonzo included.
Girls: Elizabeth, Maria, Lydia, Cecilia, Julia, Miriam. Boys: Samuel, Wesley, Vincent, Calvin, Victor, Oscar.
Same era, but close to Alonzo
These names follow Alonzo's curve too, but we left them out above because they share a first letter or an ending with Alonzo. 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 Alonzo's since 1880, and its recent number of babies is within about twelve times Alonzo's, so the names are in the same league. Names starting with the same letter as Alonzo or with the same ending are left out, so the names go together without matching. Spellings of Alonzo itself are excluded.