Mj
#5,763 in 2025UnisexBoys' nameGirls' nameMeaning not yet documented
Mj has been given to 224 babies in the U.S. since 2005. In 2025 it ranked #5,763 of 13,926 boys’ names in use. Its peak year was 2018, with 17 recorded. It's used for both sexes: 81% boys, 19% girls all-time.
Babies named Mj, 2025
1 in 207,000
Mj over time, 1880–2025
Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
Girls or boys — Mj over time
In 2025, Mj went to 0% girls and 100% boys.
A sex is only published in years it reached five applications, so a stretch at 0% or 100% means the other side stayed under that floor — not that it was never used.
How common is Mj?
Everything below is computed from the 2025 data — the most recent year available.
- Among all babies, 2025
- 1 in 207,000
- 16 of 3,315,165 births
- Among boys only
- 1 in 107,000
- <0.01% of boys
- Rank, 2025
- #5,763
- of 13,926 boys’ names in use
- Coin-flip room size
- 143,620 kids
- Even odds of a second one
Where Mj sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 143,620 children born in 2025 and it's an even bet that one of them is another Mj. In a class of 30 the chance is Under 1%.
When Mjs were born
Half of everyone ever recorded as Mj was born before 2018 — so the typical Mj is around 7 today.
- Biggest decade
- 2010s
- 46.2% of all use
- Born in the last 25 years
- 100.0%
- A modern name
- Recorded since 1950
- 182
- People you could plausibly meet
2010s — 46.2% of all recorded uses (84).
Is Mj rising or falling?
Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.
- Rank vs 1 year ago
- +2,992
- Places climbed
- Rank vs 5 years ago
- +3,507
- Places climbed
- Rank vs 10 years ago
- +2,729
- Places climbed
- Births vs 10 years ago
- 1.78×
- More babies than then
- Share of its own peak
- 94.1%
- Peak was 2018 (17)
- Years since peak
- 7
- Years
- Year-to-year steadiness
- Volatile
- 48.1% average annual change
Where Mj is used
Across 1910–2025, Mj was most concentrated in Hawaii — about 1 in 100,000 boys, against 1 in 113,262 across all states with data.
Most concentrated
- 1Hawaii1 in 100,000
Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Mj has too little recent state data to map, so this covers all years from 1910.
Mj around the world
Where Mj ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.
- England & Wales2010–2022#4,790in 2022
- Ireland2015–2025#829in 2025
Popularity data from Office for National Statistics and Central Statistics Office. ONS data under Open Government Licence v3.0. CSO data under CC BY 4.0.
Mj by the numbers
The raw record for each sex the name is used for.
As a boy's name
Sibling names for Mj
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.