Sibling names for Kathy
Names that sound like they belong in the same family as Kathy usually share its era. These sister and brother names rose and fell on a similar curve to Kathy, whose busiest decade was the 1950s, and are about as common, so neither child's name will feel dated or unusual next to the other.
Sister names for Kathy
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Vicky | pet form of Victoria; "victory" | #4,163 | 169 | 1950s |
| Sheryl | #8,281 | 89 | 1950s | |
| Cynthia | woman of Mount Cynthus (Artemis) | #1,014 | 1,547 | 1950s |
| Pamela | coined by Philip Sidney (meaning unknown) | #2,251 | 479 | 1950s |
| Lynn | lake or pool (surname) | #2,558 | 303 | 1950s |
| Susan | lily (from Susanna) | #1,091 | 1,099 | 1950s |
| Brenda | #1,527 | 915 | 1950s | |
| Debra | variant of Deborah, 'bee' | #4,478 | 187 | 1950s |
| Debbie | pet form of Deborah, 'bee' | #5,284 | 135 | 1960s |
| Denise | feminine of Dennis (Dionysius) | #1,677 | 736 | 1960s |
Brother names for Kathy
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Rick | short form of Richard; "strong ruler" | #3,077 | 216 | 1950s |
| Randy | pet form of Randall or Randolph | #1,089 | 1,158 | 1950s |
| Terry | from Thierry (Theodoric); or short for Terence, Theresa | #1,116 | 1,015 | 1950s |
| Bruce | #536 | 2,735 | 1950s | |
| Steve | short form of Stephen, 'crown' | #1,617 | 575 | 1960s |
| Douglas | black stream | #807 | 1,595 | 1950s |
| Tim | short form of Timothy; "honoring God" | #3,230 | 202 | 1960s |
| Greg | short form of Gregory; "watchful" | #4,761 | 121 | 1960s |
| Darrell | from d'Airel (Norman place name) | #1,691 | 588 | 1960s |
| Mike | short form of Michael | #1,234 | 963 | 1960s |
Kathy's era
Kathy ranked #3,274 for girls in 2025, against #1,690 in 2015. Its best year was 1958, at #14. 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, Kathy included.
Girls: Elizabeth, Maria, Lydia, Cecilia, Julia, Miriam. Boys: Samuel, Anthony, Wesley, Vincent, Calvin, Victor.
Same era, but close to Kathy
These names follow Kathy's curve too, but we left them out above because they share a first letter or an ending with Kathy. Some parents like that echo; if you do, start here.
- Karen same first letter as Kathy
How these were chosen
Each suggestion's share of US babies has followed a curve close to Kathy's since 1880, and its recent number of babies is within about twelve times Kathy's, so the names are in the same league. Names starting with the same letter as Kathy or with the same ending are left out, so the names go together without matching. Spellings of Kathy itself are excluded.