Sergei
Sergei was given to 5 boys in 2025, #13,573 among boys’ names; 376 Americans have been recorded with it since 1925 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Sergei by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Sergei mean?
Wiktionary, English section
Sergei is “a transliteration of the Russian male given name Серге́й (Sergéj), equivalent to Sergius.”
Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Sergei?
#13,573 among boys’ names, 2025
Sergei rose from #13,708 in 2015 to #13,573 in 2025 among boys’ names; its share of boys born rose from 2.6 to 2.9 per million.
16 babies in 1998, the peak
Sergei peaked in 1998, when 16 boys were given it, #4,375 among boys’ names. The 5 births of 2025 are 31% of that peak.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2025 | 5 | #13,573 | 2.9 |
| 2021 | 8 | #9,543 | 4.6 |
| 2020 | 5 | #13,709 | 2.9 |
| 2018 | 6 | #11,898 | 3.3 |
| 2016 | 8 | #9,525 | 4.2 |
| 2015 | 5 | #13,708 | 2.6 |
| 2014 | 11 | #7,462 | 5.7 |
| 2012 | 7 | #10,569 | 3.7 |
| 2010 | 13 | #6,640 | 6.8 |
| 2009 | 7 | #10,777 | 3.5 |
Every recorded year (51)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2008 | 7 | #10,829 | 3.4 |
| 2007 | 8 | #9,615 | 3.9 |
| 2006 | 11 | #7,336 | 5.4 |
| 2005 | 10 | #7,549 | 5.0 |
| 2004 | 8 | #8,779 | 4.0 |
| 2003 | 8 | #8,488 | 4.0 |
| 2002 | 8 | #8,308 | 4.1 |
| 2001 | 6 | #10,331 | 3.1 |
| 2000 | 13 | #5,522 | 6.6 |
| 1999 | 12 | #5,590 | 6.2 |
| 1998 | 16 | #4,375 | 8.4 |
| 1997 | 13 | #4,901 | 6.9 |
| 1996 | 13 | #4,830 | 6.9 |
| 1995 | 5 | #10,048 | 2.6 |
| 1994 | 6 | #8,615 | 3.1 |
| 1992 | 9 | #6,050 | 4.5 |
| 1991 | 5 | #9,380 | 2.5 |
| 1990 | 5 | #9,269 | 2.4 |
| 1989 | 5 | #9,001 | 2.5 |
| 1985 | 5 | #7,398 | 2.7 |
| 1981 | 6 | #6,119 | 3.3 |
| 1980 | 5 | #7,115 | 2.8 |
| 1975 | 8 | #4,243 | 5.1 |
| 1974 | 5 | #5,875 | 3.2 |
| 1972 | 5 | #5,614 | 3.1 |
| 1971 | 7 | #4,311 | 4.0 |
| 1970 | 8 | #3,781 | 4.3 |
| 1967 | 7 | #3,496 | 4.0 |
| 1966 | 5 | #4,442 | 2.8 |
| 1963 | 5 | #4,534 | 2.5 |
| 1962 | 6 | #3,972 | 2.9 |
| 1961 | 8 | #3,317 | 3.8 |
| 1959 | 6 | #3,929 | 2.8 |
| 1958 | 6 | #3,874 | 2.8 |
| 1955 | 5 | #4,315 | 2.4 |
| 1953 | 6 | #3,743 | 3.0 |
| 1952 | 8 | #3,066 | 4.1 |
| 1951 | 5 | #4,177 | 2.7 |
| 1946 | 5 | #3,949 | 3.1 |
| 1942 | 6 | #3,513 | 4.3 |
| 1925 | 6 | #4,124 | 5.4 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Sergei a boy’s or a girl’s name?
Sergei has been recorded only for boys: SSA lists no girls with the name in 51 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Sergei: the SSA national file counts each sex separately.
How many people are named Sergei, and how old are they?
An estimated 335 Americans named Sergei and born in the U.S. are alive in 2026 (89% of everyone recorded); the median is 28 years old and half are between 19 and 46. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 3,012 people named Sergei (7 women and girls, 3,005 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 328 born in the U.S. The Census count is 9.2 times that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Names spelled alike
Of these 5 names spelled alike, given to 84,839 babies since 1880, Sergei is the fourth most given (<1% of them). In 2025 it was given to 5 of their 744 babies (<1%), the fifth most given that year.
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Sergei
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Sergei and names like it
- Compare Sergei and SergioBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1990sSergei peaked in 1998.
- The top names of 1998The year the most babies were named Sergei.
- The names of Generation ZMost people named Sergei alive today were born 1997-2012.
- Names starting with SMost given first.