Moo
Moo was last recorded in 2023, when 10 babies were given it; 121 Americans have been recorded with it between 2008 and 2023 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Moo by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Moo?
Unranked in 2025
Its last boys’ rank on record is #13,520, in 2023; SSA lists a name only in years with 5 or more births.
18 babies in 2013, the peak
Moo peaked in 2013, when 18 babies were given it (11 boys, #7,379 among boys’ names). It was not recorded in 2025.
Births by sex.
| Year | Girls | Girls’ rank | Boys | Boys’ rank |
|---|---|---|---|---|
| 2023 | 5 | #16,835 | 5 | #13,520 |
| 2021 | 6 | #14,709 | 6 | #11,693 |
| 2018 | under 5 | 11 | #7,456 | |
| 2017 | 7 | #13,665 | 6 | #11,727 |
| 2016 | under 5 | 5 | #13,560 | |
| 2015 | 7 | #14,020 | 8 | #9,288 |
| 2014 | under 5 | 9 | #8,572 | |
| 2013 | 7 | #14,169 | 11 | #7,379 |
| 2012 | 6 | #16,258 | 6 | #11,786 |
| 2011 | 5 | #18,691 | under 5 |
Every recorded year (12)
| Year | Girls | Girls’ rank | Boys | Boys’ rank |
|---|---|---|---|---|
| 2010 | under 5 | 5 | #13,623 | |
| 2008 | 6 | #16,830 | under 5 |
Ranks: girls’ names and boys’ names ranked separately in each year’s SSA file; “under 5” is a year SSA did not list the name for that sex.
Is Moo a boy’s or a girl’s name?
Of the 121 Americans recorded as Moo, 40% are girls and 60% boys.
Years with fewer than 20 babies given the name are left blank.
Girls and boys named Moo: the SSA national file counts each sex separately.
How many people are named Moo, and how old are they?
An estimated 120 Americans named Moo and born in the U.S. are alive in 2026 (99% of everyone recorded); the median is 11 years old and half are between 8 and 13. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 1,308 people named Moo (623 women and girls, 685 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 99 born in the U.S. The Census count is 13.2 times that prediction. Possible reasons: the Census records the name people give, which for many is the short form Moo rather than the name on their birth record, and it counts people born abroad, whom SSA’s files leave out.
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 3 names spelled alike, given to 1,083 babies since 1880, Moo is the third most given (11% 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 Moo and names like it
- Compare Moo and MoeBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2010sMoo peaked in 2013.
- The top names of 2013The year the most babies were named Moo.
- The names of Generation AlphaMost people named Moo alive today were born 2013-2025.
- Names starting with MMost given first.