Kj

♂ Boy

Pronounced KAY-jay /ˈkeɪ.dʒeɪ/High

Meaning: An initial-name from the letters K and J (often the initials of a longer name, e.g. Kevin James, Kenneth Jr.); no traditional meaningLow

In 30 seconds: An initial-name: Kj is the letters K and J as a name — crisp and modern. Friendly and bold (said 'KAY-jay').

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Origin LowAmerican

MeaningAn initial-name from the letters K and J (often the initials of a longer name, e.g. Kevin James, Kenneth Jr.); no traditional meaning

U.S. rank (2025)#7021 ↘ Falling

2025 U.S. births12 boys (0.00% of U.S. boys)

Peak year2021

Total births (all-time)≈ 229

Popularity in the U.S. · SSA data

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Kj (KJ) is an initial-name — the letters K and J used as a given name, said 'KAY-jay'. Such names often begin as the initials of a longer name (Kevin James, Kenneth Jr.) or as affectionate nicknames that became official (the basketball player KJ; we note it has no traditional etymology). A crisp, friendly, modern American name.

It registers thinly in records. Rare, an-initial-name, and modern.

Did you know? Kj is an initial-name — the letters K and J spoken as a name (often the initials of a longer name, like Kevin James, or 'K Junior') — a crisp, modern American name with no traditional meaning (which we flag; said 'KAY-jay').

Overall data confidence 40%

U.S. Social Security Administration name files — initial-name

Variations

KJKjayKayjay

Nicknames

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Famous Bearers

Famous bearers coming soon.

If you like Kj…

Tj— a fellow initial-name

Aj— a companion initial-name

Cj— a fellow letter-name

Kayson— shares Kj's American roots

Kymir— a fellow American choice

Explore names like Kj

By themeuncertain american initial-name

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Frequently Asked

What does the name Kj mean?

Kj is an initial-name (the letters K and J), often from a longer name; it has no traditional meaning, which we flag.

How do you pronounce Kj?

It's said KAY-jay /ˈkeɪ.dʒeɪ/ — two syllables.

Is Kj a boy or girl name?

Kj is a boy's name.

How popular is Kj?

Kj is a rare name in the U.S.