Koleen
Koleen was last recorded in 1991, when 5 babies were given it; 233 Americans have been recorded with it between 1949 and 1991 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Koleen by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Koleen?
Unranked in 2025
Its last girls’ rank on record is #14,291, in 1991; SSA lists a name only in years with 5 or more births.
15 babies in 1959, the peak
Koleen peaked in 1959, when 15 girls were given it, #3,176 among girls’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 1991 | 5 | #14,291 | 2.7 |
| 1982 | 5 | #11,343 | 3.0 |
| 1980 | 6 | #9,674 | 3.6 |
| 1977 | 9 | #6,587 | 5.9 |
| 1976 | 6 | #8,651 | 4.1 |
| 1973 | 6 | #7,894 | 4.1 |
| 1972 | 5 | #8,895 | 3.3 |
| 1971 | 7 | #6,955 | 4.2 |
| 1970 | 12 | #4,618 | 6.9 |
| 1969 | 10 | #4,871 | 5.9 |
Every recorded year (29)
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 1968 | 9 | #4,946 | 5.5 |
| 1967 | 5 | #7,291 | 3.0 |
| 1966 | 5 | #7,073 | 3.0 |
| 1965 | 7 | #5,542 | 4.0 |
| 1964 | 13 | #3,789 | 6.9 |
| 1963 | 9 | #4,705 | 4.7 |
| 1962 | 8 | #5,086 | 4.1 |
| 1961 | 13 | #3,693 | 6.4 |
| 1960 | 10 | #4,314 | 4.9 |
| 1959 | 15 | #3,176 | 7.4 |
| 1958 | 11 | #3,828 | 5.5 |
| 1957 | 12 | #3,580 | 5.9 |
| 1956 | 7 | #5,063 | 3.5 |
| 1955 | 8 | #4,564 | 4.1 |
| 1954 | 6 | #5,450 | 3.1 |
| 1953 | 5 | #6,099 | 2.7 |
| 1952 | 8 | #4,303 | 4.3 |
| 1950 | 6 | #5,009 | 3.5 |
| 1949 | 5 | #5,637 | 2.9 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Koleen a boy’s or a girl’s name?
Koleen has been recorded only for girls: SSA lists no boys with the name in 29 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Koleen: the SSA national file counts each sex separately.
How many people are named Koleen, and how old are they?
An estimated 201 Americans named Koleen and born in the U.S. are alive in 2026 (86% of everyone recorded); the median is 62 years old and half are between 56 and 68. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 297 people named Koleen (296 women and girls, 1 man or boy). SSA’s births carried forward to Census day, April 1, 2020, predict 210 born in the U.S. The Census count is 41% above 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 Koleen?
Koleen is a less common spelling of Colleen: SSA has recorded 233 Koleen and 163,084 Colleen since 1880.
Of these 4 names spelled alike, given to 176,331 babies since 1880, Koleen is the fourth most given (<1% of them). In 2025 none of their 60 babies recorded by SSA was a Koleen (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 Koleen
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 Koleen and names like it
- Compare Koleen and ColleenBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1950sKoleen peaked in 1959.
- The top names of 1959The year the most babies were named Koleen.
- The names of the Baby BoomersMost people named Koleen alive today were born 1946-1964.
- Names starting with KMost given first.