Eternity
Girl name · #2319 in 2025 · Very rare
How old is the name Eternity? In official American birth records, Eternity has been tracked continuously since 1990, giving it 35 years of documented American history.
In 2025, 79 baby girls were named Eternity, placing it at #2319 in the official national rankings. A decade ago it stood at #2209, so the name has been falling over the past ten years. Roughly one in every 22,785 girls born in 2025 was named Eternity.
The 35-year story
Eternity first appears in the Social Security records in 1990, when 5 girls received the name. Its peak came in 2009, when 103 girls were named Eternity — good for #2005 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.
Babies named Eternity per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Eternity against up to 5 other names.
Uniqueness: will there be another Eternity in class?
On our rarity read — which blends how common Eternity is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Eternity will likely be the only one in the room, with the occasional spelling-out as the price.
Where Eternity is most common
State-level data for Eternity 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 Eternity
Statistically, parents drawn to Eternity tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Cerenity, Divinity, Estefany, Honesty, and Clarity.
CerenityDivinityEstefanyHonestyClarityAngelyEmmersonEmelyn
Rank history (last 25 years)
| Year | Babies named Eternity | Rank |
|---|---|---|
| 2025 | 79 | #2298 |
| 2024 | 86 | #2203 |
| 2023 | 77 | #2352 |
| 2022 | 67 | #2604 |
| 2021 | 99 | #1971 |
| 2020 | 75 | #2341 |
| 2019 | 83 | #2217 |
| 2018 | 80 | #2275 |
| 2017 | 51 | #3145 |
| 2016 | 80 | #2343 |
| 2015 | 85 | #2209 |
| 2014 | 98 | #2010 |
| 2013 | 74 | #2439 |
| 2012 | 81 | #2315 |
| 2011 | 84 | #2238 |
| 2010 | 89 | #2185 |
| 2009 | 103 | #2005 |
| 2008 | 89 | #2218 |
| 2007 | 83 | #2311 |
| 2006 | 97 | #2031 |
| 2005 | 50 | #3126 |
| 2004 | 59 | #2742 |
| 2003 | 54 | #2840 |
| 2002 | 66 | #2414 |
| 2001 | 43 | #3198 |
Frequently asked questions
How old is the name Eternity?
In official American birth records, the name Eternity first appeared in 1990 (over 35 years ago), when 5 newborn girls received the name. It has been tracked in modern national records for 35 years.
Is Eternity a popular girl name?
Eternity ranked #2319 among girls in 2025 with 79 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #2209.
When was the name Eternity most popular?
Eternity peaked in 2009, when 103 American girls received the name (ranked #2005 that year). Since 2009 the name has declined from that high.
How rare is the name Eternity?
In 2025, roughly 1 in 22,785 newborn American girls was named Eternity. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.