Sibling names for August
Names that sound like they belong in the same family as August usually share its era. These sister and brother names rose and fell on a similar curve to August, whose busiest decade was the 2020s, and are about as common, so neither child's name will feel dated or unusual next to the other.
Sister names for August
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Millie | pet form of Mildred, Millicent, Emily, Amelia and others | #73 | 12,731 | 2020s |
| Nora | short form of Eleanor or Honora | #20 | 30,984 | 2010s |
| Josie | pet form of Josephine | #82 | 12,978 | 2020s |
| Eliza | my God is an oath (short form of Elizabeth) | #115 | 11,878 | 2010s |
| Mina | #597 | 2,492 | 2010s | |
| Ophelia | help (Greek, via an Italian coinage) | #264 | 5,766 | 2020s |
| Sadie | pet form of Sarah | #50 | 18,029 | 2010s |
| Lucy | light (Latin root) | #25 | 25,390 | 2010s |
| Stella | star | #52 | 22,450 | 2010s |
| Helena | #363 | 3,552 | 2010s | |
| Clementine | merciful (feminine of Clement) | #456 | 2,985 | 2020s |
Brother names for August
| Name | Meaning | Rank 2025 | Babies, last 5 years | Peak decade |
|---|---|---|---|---|
| Fletcher | arrow maker (English surname) | #547 | 2,334 | 2010s |
| Royal | royal; or from English place names | #476 | 3,948 | 2010s |
| Major | #670 | 2,941 | 2010s | |
| Jasper | treasurer (Persian) | #129 | 14,304 | 2010s |
| Lucian | of Lucius (light) | #462 | 2,930 | 2010s |
| Cyrus | #268 | 5,775 | 2020s | |
| Emmett | little Emma (probably) | #121 | 16,023 | 2010s |
| Henry | home + ruler (Germanic) | #5 | 57,254 | 1920s |
| Otto | wealth, prosperity | #277 | 5,735 | 2020s |
| Moses | #515 | 2,884 | 2010s |
August's era
August ranked #81 for boys in 2025, against #195 in 2015. Its best year was 1880, at #74. A sibling name from the same wave will sound like it was chosen by the same parents; a name from an older or newer wave can make one child's name feel dated next to the other's.
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, August included.
Girls: Elizabeth, Maria, Lydia, Cecilia, Julia, Miriam. Boys: Samuel, Wesley, Vincent, Calvin, Victor, Oscar.
Same era, but close to August
These names follow August's curve too, but we left them out above because they share a first letter or an ending with August. 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 August's since 1880, and its recent number of babies is within about twelve times August's, so the names are in the same league. Names starting with the same letter as August or with the same ending are left out, so the names go together without matching. Spellings of August itself are excluded.