Sibling names for Jan
Names that sound like they belong in the same family as Jan usually share its era. These sister and brother names rose and fell on a similar curve to Jan, 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 Jan
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Marlene | Maria + Magdalene (German) | #1,268 | 813 | 1930s |
| Glenda | holy + good (Welsh coinage) | #5,987 | 112 | 1950s |
| Kaye | short form of Katherine; Arthurian Sir Kay | #6,442 | 64 | 1940s |
| Marcia | feminine of Marcius (from Mars) | #3,434 | 188 | 1950s |
| Maryanne | from Marion (Mary), or Mary + Ann | #3,686 | 205 | 1950s |
| Carolynn | feminine of Charles: man, free man | #3,409 | 198 | 1940s |
| Roseanne | #5,678 | 85 | 1950s | |
| Karol | short form of Caroline; also male Carolus | #3,426 | 258 | 1950s |
| Merry | #10,634 | 68 | 1950s |
Brother names for Jan
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Rodger | famous spear (Germanic) | #5,353 | 73 | 1950s |
| Ronnie | pet form of Ronald or Veronica | #1,067 | 1,057 | 1950s |
| Denis | follower of Dionysus (Greek) | #1,712 | 505 | 1950s |
| Sammy | #1,864 | 534 | 1940s | |
| Gerry | #9,186 | 42 | 1950s | |
| Mickey | pet form of Michael; "who is like God?" | #2,048 | 459 | 1950s |
| Freddy | pet form of Frederick | #1,422 | 702 | 1950s |
Jan's era
Jan ranked #2,731 for boys in 2025, against #1,685 in 2015. Its best year was 1944, at #247. 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, Jan included.
Girls: Elizabeth, Maria, Lydia, Cecilia, Miriam, Nina. Boys: Samuel, Anthony, Wesley, Vincent, Calvin, Victor.
Same era, but close to Jan
These names follow Jan's curve too, but we left them out above because they share a first letter or an ending with Jan. 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 Jan's since 1880, and its recent number of babies is within about twelve times Jan's, so the names are in the same league. Names starting with the same letter as Jan or with the same ending are left out, so the names go together without matching. Spellings of Jan itself are excluded.