Sir
Boy name · #2175 in 2025 · Very rare
How old is the name Sir? In official American birth records, Sir has been tracked continuously since 1967, giving it 58 years of documented American history.
In 2025, 66 baby boys were named Sir, placing it at #2175 in the official national rankings. A decade ago it stood at #2355, so the name has been rising over the past ten years. Roughly one in every 27,273 boys born in 2025 was named Sir.
Babies named Sir per year. Source: Official national birth records.
The 58-year story
Sir first appears in the Social Security records in 1967, when 5 boys received the name. Its peak came in 2021, when 123 boys were named Sir — good for #1461 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 Sir against up to 5 other names.
Uniqueness: will there be another Sir in class?
On our rarity read — which blends how common Sir is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Sir will likely be the only one in the room, with the occasional spelling-out as the price.
Where Sir is most common
State-level data for Sir 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 Sir
Statistically, parents drawn to Sir tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Jasir, Jahsir, Yasir, Sabir, and Nassir.
JasirJahsirYasirSabirNassirNysirAasirTamir
Rank history (last 25 years)
| Year | Babies named Sir | Rank |
|---|---|---|
| 2025 | 66 | #2167 |
| 2024 | 80 | #1957 |
| 2023 | 84 | #1875 |
| 2022 | 96 | #1737 |
| 2021 | 123 | #1461 |
| 2020 | 110 | #1518 |
| 2019 | 111 | #1523 |
| 2018 | 111 | #1530 |
| 2017 | 56 | #2319 |
| 2016 | 51 | #2477 |
| 2015 | 55 | #2355 |
| 2014 | 58 | #2277 |
| 2013 | 55 | #2299 |
| 2012 | 33 | #3297 |
| 2011 | 34 | #3235 |
| 2010 | 49 | #2511 |
| 2009 | 34 | #3274 |
| 2008 | 47 | #2632 |
| 2007 | 43 | #2765 |
| 2006 | 41 | #2784 |
| 2005 | 47 | #2433 |
| 2004 | 44 | #2489 |
| 2003 | 44 | #2392 |
| 2002 | 35 | #2685 |
| 2001 | 29 | #3061 |
Frequently asked questions
How old is the name Sir?
In official American birth records, the name Sir first appeared in 1967 (over 58 years ago), when 5 newborn boys received the name. It has been tracked in modern national records for 58 years.
Is Sir a popular boy name?
Sir ranked #2175 among boys in 2025 with 66 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #2355.
When was the name Sir most popular?
Sir peaked in 2021, when 123 American boys received the name (ranked #1461 that year). Since 2021 the name has declined from that high.
How rare is the name Sir?
In 2025, roughly 1 in 27,273 newborn American boys was named Sir. 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.