Tomoko
Tomoko was last recorded in 1991, when 5 babies were given it; 128 Americans have been recorded with it between 1923 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 Tomoko by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Tomoko mean?
Wiktionary, English section
Tomoko is “a female given name from Japanese.”
Borrowed from Japanese ともこ (Tomoko).
Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Tomoko?
Unranked in 2025
Its last girls’ rank on record is #15,296, in 1991; SSA lists a name only in years with 5 or more births.
10 babies in 1982, the peak
Tomoko peaked in 1982, when 10 girls were given it, #6,856 among girls’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 1991 | 5 | #15,296 | 2.7 |
| 1990 | 8 | #10,128 | 4.2 |
| 1989 | 8 | #9,616 | 4.3 |
| 1987 | 6 | #11,208 | 3.5 |
| 1986 | 5 | #12,721 | 2.9 |
| 1985 | 6 | #10,599 | 3.5 |
| 1983 | 8 | #7,995 | 4.8 |
| 1982 | 10 | #6,856 | 5.9 |
| 1980 | 8 | #8,120 | 4.8 |
| 1979 | 9 | #7,280 | 5.6 |
Every recorded year (19)
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 1976 | 5 | #10,801 | 3.4 |
| 1975 | 6 | #8,989 | 4.1 |
| 1974 | 8 | #6,847 | 5.5 |
| 1972 | 5 | #9,560 | 3.3 |
| 1971 | 5 | #9,548 | 3.0 |
| 1969 | 6 | #7,416 | 3.6 |
| 1925 | 8 | #3,997 | 6.6 |
| 1924 | 7 | #4,400 | 5.6 |
| 1923 | 5 | #5,654 | 4.1 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Tomoko a boy’s or a girl’s name?
Tomoko has been recorded only for girls: SSA lists no boys with the name in 19 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Tomoko: the SSA national file counts each sex separately.
How many people are named Tomoko, and how old are they?
An estimated 103 Americans named Tomoko and born in the U.S. are alive in 2026 (81% of everyone recorded); the median is 44 years old and half are between 39 and 51. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 2,754 people named Tomoko (2,749 women and girls, 5 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 106 born in the U.S. The Census count is 26.0 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 7,634 babies since 1880, Tomoko is the fifth most given (1.7% of them).
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.
More about Tomoko and names like it
- Compare Tomoko and TomekaBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1980sTomoko peaked in 1982.
- California’s most given namesThe state where SSA recorded the most babies named Tomoko since 1910.
- Japanese namesWiktionary’s origin for Tomoko: every such name, by how often it is given.
- The top names of 1982The year the most babies were named Tomoko.
- The names of the MillennialsMost people named Tomoko alive today were born 1981-1996.
- Names starting with TMost given first.