Free tool
Sibling name finder
Free to use. Enter a published spelling. Suggestions are other profiles that share length, ending letters, peak era, or the direction from 2021 to 2025.
US national data through 2025 · Source retrieved
Data updated
A shared link looks like /tools/sibling-name-finder/?name=Liam. The canonical URL is this page without the query. Sibling names for Liam is the indexable list for that spelling.
How a suggestion qualifies
At least three matches, and one of them must be the ending, the peak year within 15 years, or the same five-year direction. The list keeps at most 12 names and skips a second spelling of a name already shown. In 2025, Liam ranks #4,829 in female records (28 reported) and #1 in male records (20,818 reported). The larger category moved from 20,424 in 2021 to 20,818 in 2025, so the count is higher (+394).
Brother names
| Name | Letters | Ending | Peak year | 2025 count | Direction | Matched rules |
|---|---|---|---|---|---|---|
| Noah | 4 | ah | 2024 | 20,358 | rising | Length within one letter; Peak year within 15 years; Same five-year direction; Latest count within a quarter to four times |
| Ezra | 4 | ra | 2024 | 8,126 | rising | Length within one letter; Peak year within 15 years; Same five-year direction; Latest count within a quarter to four times |
| Mateo | 5 | eo | 2024 | 11,045 | rising | Length within one letter; Peak year within 15 years; Same five-year direction; Latest count within a quarter to four times |
| Miles | 5 | es | 2024 | 6,072 | rising | Length within one letter; Peak year within 15 years; Same five-year direction; Latest count within a quarter to four times |
| Luca | 4 | ca | 2025 | 8,759 | rising | Length within one letter; Peak year within 15 years; Same five-year direction; Latest count within a quarter to four times |
| Henry | 5 | ry | 2025 | 12,020 | rising | Length within one letter; Peak year within 15 years; Same five-year direction; Latest count within a quarter to four times |
| Elias | 5 | as | 2025 | 8,837 | rising | Length within one letter; Peak year within 15 years; Same five-year direction; Latest count within a quarter to four times |
| Roman | 5 | an | 2025 | 6,162 | rising | Length within one letter; Peak year within 15 years; Same five-year direction; Latest count within a quarter to four times |
Sister names
| Name | Letters | Ending | Peak year | 2025 count | Direction | Matched rules |
|---|---|---|---|---|---|---|
| Ellie | 5 | ie | 2024 | 6,176 | rising | Length within one letter; Peak year within 15 years; Same five-year direction; Latest count within a quarter to four times |
| Nora | 4 | ra | 2025 | 6,380 | rising | Length within one letter; Peak year within 15 years; Same five-year direction; Latest count within a quarter to four times |
| Lucy | 4 | cy | 2025 | 6,176 | rising | Length within one letter; Peak year within 15 years; Same five-year direction; Latest count within a quarter to four times |
| Isla | 4 | la | 2025 | 6,012 | rising | Length within one letter; Peak year within 15 years; Same five-year direction; Latest count within a quarter to four times |
Questions about this tool
How are sibling names chosen?
A different spelling is listed when it matches at least three of these rules: length within one letter, the same last two letters, a peak year within 15 years, the same direction from 2021 to 2025, and a latest count between one quarter and four times the name you entered. At least one match has to be the ending, the peak, or the direction. Sister names are the ones whose larger 2025 count is female. Brother names are the ones whose larger count is male. An equal female and male count is listed as unisex. A missing 2021 count is unknown, not zero. Only published profiles are suggested, and a second spelling of a name already on the list is left out.
Does the finder use meanings or origins?
No. It uses the spelling and published SSA counts only. It does not score names, and it does not predict which sibling a family will prefer.
Why is a spelling missing from the picker?
The picker is the public profile list. A profile exists when the larger 2025 recorded-sex count is at least 500, or when that profile was already published. Other spellings remain in the name library without this tool’s signals.