Milly
Girl name · #1779 in 2025 · Very rare
Milly is currently the #1779 girl name in the United States — 113 babies received it in 2025. A decade ago it stood at #2152, so the name has been rising over the past ten years. Roughly one in every 15,929 girls born in 2025 was named Milly.
Babies named Milly per year. Source: SSA.
The 141-year story
Milly first appears in the Social Security records in 1884, when 10 girls received the name. Its peak came in 2014, when 129 girls were named Milly — good for #1652 that year. Today's parents encounter it on its way down the popularity curve, which for many parents is exactly the appeal. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Unlock the 5-year forecast and compare Milly against up to 5 other names.
Uniqueness: will there be another Milly in class?
On our rarity read — which blends how common Milly is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Milly will likely be the only one in the room, with the occasional spelling-out as the price.
Where Milly is most common
State-level data for Milly is too sparse in 2025 to rank by rate — in most states its count falls below the SSA's per-state reporting threshold (counts under 5 are withheld).
Names like Milly
Statistically, parents drawn to Milly tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Elly, Italy, Nelly, Mabry, and Keily.
EllyItalyNellyMabryKeilyMaizyJanellyMalky
Rank history (last 25 years)
| Year | Babies named Milly | Rank |
|---|---|---|
| 2025 | 113 | #1777 |
| 2024 | 112 | #1796 |
| 2023 | 110 | #1826 |
| 2022 | 116 | #1775 |
| 2021 | 119 | #1730 |
| 2020 | 103 | #1872 |
| 2019 | 103 | #1919 |
| 2018 | 108 | #1869 |
| 2017 | 103 | #1943 |
| 2016 | 113 | #1828 |
| 2015 | 88 | #2152 |
| 2014 | 129 | #1652 |
| 2013 | 108 | #1866 |
| 2012 | 95 | #2028 |
| 2011 | 82 | #2274 |
| 2010 | 95 | #2077 |
| 2009 | 78 | #2446 |
| 2008 | 116 | #1844 |
| 2007 | 46 | #3531 |
| 2006 | 53 | #3136 |
| 2005 | 39 | #3730 |
| 2004 | 40 | #3631 |
| 2003 | 48 | #3085 |
| 2002 | 32 | #3978 |
| 2001 | 31 | #4025 |
Frequently asked questions
Is Milly a popular girl name?
Milly ranked #1779 among girls in 2025 with 113 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #2152.
When was the name Milly most popular?
Milly peaked in 2014, when 129 American girls received the name (ranked #1652 that year). Since 2014 the name has declined from that high.
How rare is the name Milly?
In 2025, roughly 1 in 15,929 newborn American girls was named Milly. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: U.S. Social Security Administration name statistics, 1880–2025, national and state files. Counts reflect Social Security card applications; names with fewer than 5 occurrences in a state-year are suppressed by the SSA.