Sibling names for Sylvester
Names that sound like they belong in the same family as Sylvester usually share its era. These sister and brother names rose and fell on a similar curve to Sylvester, whose busiest decade was the 1920s, and are about as common, so neither child's name will feel dated or unusual next to the other.
Sister names for Sylvester
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Loretta | #606 | 1,925 | 1930s | |
| Alva | #5,567 | 135 | 1920s | |
| Idella | #12,399 | 35 | 1920s | |
| Cecile | #5,592 | 105 | 1920s | |
| Janie | pet form of Jane; "God is gracious" | #1,329 | 725 | 1950s |
| Freda | "peace" (via Frederick or Winifred) | #6,630 | 78 | 1920s |
| Elvira | #1,715 | 408 | 1920s | |
| Mable | lovable | #2,450 | 302 | 1920s |
| Irma | "whole, great" | #3,181 | 316 | 1920s |
Brother names for Sylvester
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Otis | son of Ote (Germanic, related to Otto) | #652 | 2,084 | 1920s |
| Ernest | vigor; seriousness | #1,040 | 1,001 | 1920s |
| Clyde | #743 | 1,827 | 1920s | |
| Freeman | #4,072 | 145 | 1920s | |
| Herman | army man, warrior | #2,368 | 265 | 1920s |
| Edmund | "wealth" + "protection" | #1,082 | 913 | 1920s |
| Floyd | gray-haired (variant of Lloyd) | #2,237 | 326 | 1920s |
| Elbert | form of Albert; "noble and bright" | #8,442 | 35 | 1920s |
| Haywood | #6,944 | 50 | 1920s | |
| Alfred | elf counsel | #840 | 1,380 | 1920s |
| Earl | nobleman (title) | #2,236 | 371 | 1920s |
| Horace | #6,245 | 89 | 1920s |
Sylvester's era
Sylvester ranked #2,224 for boys in 2025, against #1,999 in 2015. Its best year was 1889, at #127. 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, Sylvester included.
Girls: Elizabeth, Maria, Lydia, Cecilia, Julia, Miriam. Boys: Anthony, Wesley, Vincent, Calvin, Victor, Oscar.
How these were chosen
Each suggestion's share of US babies has followed a curve close to Sylvester's since 1880, and its recent number of babies is within about twelve times Sylvester's, so the names are in the same league. Names starting with the same letter as Sylvester or with the same ending are left out, so the names go together without matching. Spellings of Sylvester itself are excluded.