Sibling names for Colin
Names that sound like they belong in the same family as Colin usually share its era. These sister and brother names rose and fell on a similar curve to Colin, whose busiest decade was the 2000s, and are about as common, so neither child's name will feel dated or unusual next to the other.
Sister names for Colin
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Adriana | from Hadria (Adria) | #366 | 4,744 | 2000s |
| Perla | #1,590 | 917 | 2000s | |
| Natalie | birthday (of Christ); Christmas | #89 | 17,299 | 2000s |
| Allison | little Alice; also son of Alan or Alice (surname) | #103 | 13,699 | 1990s |
| Gabriella | God is my strength (feminine of Gabriel) | #105 | 13,842 | 2010s |
| Kyla | modern feminine of Kyle | #580 | 2,765 | 2000s |
| Abby | pet form of Abigail, 'my father's joy' | #731 | 2,366 | 2000s |
| Jocelyn | #393 | 4,601 | 2000s | |
| Nadia | hope (Russian); also an Arabic name | #565 | 3,160 | 2000s |
| Emily | from the Roman family name Aemilius | #34 | 30,704 | 1990s |
Brother names for Colin
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Evan | God is gracious (Welsh form of John) | #153 | 13,596 | 2000s |
| Alejandro | defender of men | #195 | 9,482 | 2000s |
| Brock | badger; or variant of Brook (surname) | #810 | 1,684 | 2000s |
| Blake | #316 | 7,206 | 2000s | |
| Gustavo | Spanish/Italian form of Gustav | #625 | 2,172 | 2000s |
| Trenton | Trent's town | #1,042 | 1,508 | 2000s |
| Eduardo | wealth guard (Spanish form of Edward) | #410 | 4,524 | 2000s |
| Osvaldo | #1,408 | 658 | 2000s | |
| Marcus | #258 | 7,218 | 1980s | |
| Eric | eternal ruler (probably) | #273 | 7,560 | 1970s |
| Donovan | descendant of the dark-brown one (Irish) | #496 | 3,285 | 2000s |
Colin's era
Colin ranked #343 for boys in 2025, against #172 in 2015. Its best year was 2004, at #85. 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, Colin included.
Girls: Elizabeth, Maria, Lydia, Julia, Miriam, Nina. Boys: Samuel, Anthony, Wesley, Vincent, Victor, Oscar.
Same era, but close to Colin
These names follow Colin's curve too, but we left them out above because they share a first letter or an ending with Colin. 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 Colin's since 1880, and its recent number of babies is within about twelve times Colin's, so the names are in the same league. Names starting with the same letter as Colin or with the same ending are left out, so the names go together without matching. Spellings of Colin itself are excluded.