Lonni
Lonni was last recorded in 2024, when 9 babies were given it; 431 Americans have been recorded with it between 1944 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 Lonni by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Lonni?
Unranked in 2025
Its last girls’ rank on record is #10,747, in 2024; SSA lists a name only in years with 5 or more births.
18 babies in 1956, the peak
Lonni peaked in 1956, when 18 babies were given it (13 girls, #3,431 among girls’ names). It was not recorded in 2025.
Births by sex.
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2024 | 9 | #10,747 | 5.6 |
| 2023 | 5 | #16,618 | 3.1 |
| 2020 | 5 | #16,541 | 3.1 |
| 2019 | 5 | #17,021 | 3.0 |
| 2017 | 7 | #13,535 | 4.1 |
| 2003 | 5 | #17,286 | 2.7 |
| 1992 | 7 | #11,176 | 3.8 |
| 1990 | 5 | #14,260 | 2.6 |
| 1989 | 5 | #13,615 | 2.7 |
| 1988 | 9 | #8,105 | 5.1 |
Every recorded year (50)
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 1987 | 5 | #12,408 | 2.9 |
| 1986 | 6 | #10,281 | 3.5 |
| 1983 | 11 | #6,040 | 6.6 |
| 1982 | 7 | #8,778 | 4.1 |
| 1981 | 12 | #5,762 | 7.2 |
| 1980 | 14 | #5,120 | 8.4 |
| 1979 | 8 | #7,704 | 5.0 |
| 1978 | 6 | #9,210 | 3.9 |
| 1976 | 8 | #6,986 | 5.5 |
| 1975 | 5 | #9,912 | 3.4 |
| 1974 | 8 | #6,583 | 5.5 |
| 1973 | 8 | #6,403 | 5.5 |
| 1972 | 10 | #5,299 | 6.6 |
| 1971 | 6 | #7,906 | 3.6 |
| 1970 | 10 | #5,262 | 5.7 |
| 1969 | 11 | #4,602 | 6.5 |
| 1967 | 6 | #6,465 | 3.6 |
| 1966 | 9 | #4,704 | 5.3 |
| 1965 | 11 | #4,089 | 6.2 |
| 1964 | 7 | #5,785 | 3.7 |
| 1963 | 5 | #7,183 | 2.6 |
| 1962 | 8 | #5,120 | 4.1 |
| 1961 | 9 | #4,734 | 4.5 |
| 1960 | 11 | #4,066 | 5.4 |
| 1959 | 17 | #2,933 | 8.4 |
| 1958 | 16 | #3,030 | 8.0 |
| 1957 | 8 | #4,746 | 3.9 |
| 1956 | 13 | #3,431 | 6.5 |
| 1955 | 13 | #3,308 | 6.6 |
| 1954 | 12 | #3,416 | 6.2 |
| 1953 | 8 | #4,431 | 4.3 |
| 1952 | 9 | #3,990 | 4.9 |
| 1951 | 5 | #5,852 | 2.8 |
| 1950 | 10 | #3,573 | 5.8 |
| 1949 | 5 | #5,679 | 2.9 |
| 1948 | 10 | #3,489 | 5.9 |
| 1947 | 5 | #5,754 | 2.8 |
| 1946 | 5 | #5,373 | 3.2 |
| 1945 | 6 | #4,310 | 4.6 |
| 1944 | 7 | #3,913 | 5.3 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Lonni a boy’s or a girl’s name?
Of the 431 Americans recorded as Lonni, 96% are girls and 4% boys.
Years with fewer than 20 babies given the name are left blank.
Girls and boys named Lonni: the SSA national file counts each sex separately.
How many people are named Lonni, and how old are they?
An estimated 372 Americans named Lonni and born in the U.S. are alive in 2026 (86% of everyone recorded); the median is 57 years old and half are between 45 and 68. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 558 people named Lonni (437 women and girls, 121 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 372 born in the U.S. The Census count is 1.5 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 Lonni?
Lonni is a less common spelling of Loni: SSA has recorded 431 Lonni and 3,878 Loni since 1880.
Of these 8 names spelled alike, given to 21,894 babies since 1880, Lonni is the fifth most given (2.0% of them). In 2025 none of their 53 babies recorded by SSA was a Lonni (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 Lonni
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 Lonni and names like it
- Compare Lonni and LoniBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1950sLonni peaked in 1956.
- The top names of 1956The year the most babies were named Lonni.
- The names of the Baby BoomersMost people named Lonni alive today were born 1946-1964.
- Names starting with LMost given first.