Sibling names for Cassie
Names that sound like they belong in the same family as Cassie usually share its era. These sister and brother names rose and fell on a similar curve to Cassie, whose busiest decade was the 1980s, and are about as common, so neither child's name will feel dated or unusual next to the other.
Sister names for Cassie
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Sara | princess, noblewoman | #198 | 7,981 | 1980s |
| Lacey | from Lassy, a place in Normandy | #738 | 1,781 | 1980s |
| Justina | #4,030 | 196 | 1990s | |
| Elisabeth | 'my God is an oath' | #925 | 1,358 | 1980s |
| Rachael | ewe | #5,066 | 221 | 1980s |
| Katherine | #186 | 8,684 | 1980s | |
| Rosanna | #2,924 | 348 | 1980s | |
| Alisha | variant of Alicia (Alice); "nobility" | #1,229 | 998 | 1980s |
Brother names for Cassie
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Mathew | gift of Yahweh | #975 | 1,326 | 1980s |
| Jarvis | #2,858 | 399 | 1980s | |
| Pierre | #1,253 | 869 | 1980s | |
| Jesse | #184 | 9,713 | 1980s | |
| Antoine | French form of Anthony | #1,708 | 565 | 1980s |
| Dustin | probably from Norse Thorsteinn, 'Thor's stone' | #729 | 2,028 | 1980s |
| Marcus | #258 | 7,218 | 1980s | |
| Travis | from Old French travers (crossing) | #434 | 4,202 | 1980s |
| Ross | "headland, promontory" | #1,465 | 676 | 1980s |
Cassie's era
Cassie ranked #1,280 for girls in 2025, against #1,260 in 2015. Its best year was 1982, at #137. 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, Cassie included.
Girls: Elizabeth, Maria, Lydia, Julia, Miriam, Nina. Boys: Samuel, Anthony, Wesley, Vincent, Victor, Oscar.
Same era, but close to Cassie
These names follow Cassie's curve too, but we left them out above because they share a first letter or an ending with Cassie. 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 Cassie's since 1880, and its recent number of babies is within about twelve times Cassie's, so the names are in the same league. Names starting with the same letter as Cassie or with the same ending are left out, so the names go together without matching. Spellings of Cassie itself are excluded.