Janssen
Janssen was last recorded in 2024, when 6 babies were given it; 197 Americans have been recorded with it between 1964 and 2024 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Janssen by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Janssen?
Unranked in 2025
Its last boys’ rank on record is #11,511, in 2024; SSA lists a name only in years with 5 or more births.
16 babies in 1964, the peak
Janssen peaked in 1964, when 16 boys were given it, #2,069 among boys’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2024 | 6 | #11,511 | 3.5 |
| 2020 | 12 | #6,784 | 7.0 |
| 2017 | 5 | #13,099 | 2.7 |
| 2012 | 6 | #11,381 | 3.2 |
| 2009 | 6 | #11,587 | 3.0 |
| 2008 | 10 | #7,944 | 4.9 |
| 2005 | 5 | #12,193 | 2.5 |
| 2002 | 6 | #9,916 | 3.1 |
| 2000 | 5 | #11,116 | 2.5 |
| 1998 | 6 | #8,943 | 3.1 |
Every recorded year (30)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 1997 | 5 | #9,892 | 2.7 |
| 1994 | 5 | #9,421 | 2.6 |
| 1993 | 6 | #8,063 | 3.1 |
| 1992 | 9 | #5,837 | 4.5 |
| 1991 | 5 | #8,751 | 2.5 |
| 1990 | 6 | #7,535 | 2.9 |
| 1989 | 6 | #7,368 | 3.0 |
| 1987 | 7 | #5,735 | 3.7 |
| 1986 | 7 | #5,581 | 3.8 |
| 1985 | 5 | #6,985 | 2.7 |
| 1982 | 6 | #5,959 | 3.3 |
| 1979 | 7 | #5,064 | 4.1 |
| 1978 | 6 | #5,358 | 3.7 |
| 1977 | 6 | #5,429 | 3.7 |
| 1974 | 5 | #5,560 | 3.2 |
| 1972 | 5 | #5,305 | 3.1 |
| 1970 | 5 | #5,045 | 2.7 |
| 1967 | 5 | #4,229 | 2.9 |
| 1965 | 8 | #3,100 | 4.3 |
| 1964 | 16 | #2,069 | 8.0 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Janssen a boy’s or a girl’s name?
Janssen has been recorded only for boys: SSA lists no girls with the name in 30 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Janssen: the SSA national file counts each sex separately.
How many people are named Janssen, and how old are they?
An estimated 184 Americans named Janssen and born in the U.S. are alive in 2026 (94% of everyone recorded); the median is 35 years old and half are between 21 and 48. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 329 people named Janssen (48 women and girls, 281 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 173 born in the U.S. The Census count is 1.9 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).
How common is the spelling Janssen?
Janssen is a less common spelling of Jansen: SSA has recorded 197 Janssen and 2,338 Jansen since 1880.
Of these 3 names spelled alike, given to 3,705 babies since 1880, Janssen is the third most given (5.3% of them). In 2025 none of their 51 babies recorded by SSA was a Janssen (SSA lists a name only with 5 or more babies of one sex).
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 Janssen
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 Janssen and names like it
- Compare Janssen and JansenBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1960sJanssen peaked in 1964.
- Texas’s most given namesThe state where SSA recorded the most babies named Janssen since 1910.
- The top names of 1964The year the most babies were named Janssen.
- The names of the MillennialsMost people named Janssen alive today were born 1981-1996.
- Names starting with JMost given first.