Origin
Danish
Syllables
1
Zodiac
Aquarius
Trend
Rising
At a glance
Kaj is a name often given to boys. Ranked #6007 and is currently rising on the charts. It comes from a Danish origin and traditionally means "Keeper of the keys or earth". It has 1 syllable.
The Story of Kaj
Kaj derives from the ancient Roman Caius and evolved through Danish and Frisian usage. It spread across Northern Europe as a sturdy, no-nonsense given name. Historical records show its steady presence in Denmark and the Netherlands since the Middle Ages. In contemporary culture it appears in literature and film as a reliable everyman character. People named Kaj are often seen as practical leaders who value loyalty and quiet strength. They tend to excel in technical fields and enjoy outdoor pursuits. The name suggests resilience and a grounded nature that parents hope to instill.
Popularity
Currently ranked #6007 on the Baby Billboard Charts. Peak rank: #6007. Changed +3329 positions from last year.
Numerology Profile
Adventure and change define this path.
Desire for independence and leadership.
Values structure and hard work.
Nurturing and responsible nature.
Zodiac & Astrology
Aquarius
Aquarius energy matches Kaj's independent spirit.
Strengths
Compatible Signs
Lucky Numbers
Lucky Colors
Best Career Paths
Name Energy & Vibe
Kaj radiates calm confidence and quiet power.
Color Aura
Steel Blue
Element
Air
Season
Winter
Gemstone
Aquamarine
Spirit Animal
Wolf
Power Word
Strength
Energy Type
Air × Winter
Personality & Traits
Resilient
Faces challenges with steady determination and calm focus.
Loyal
Builds deep lasting bonds with family and friends.
Famous People Named Kaj
Kaj Munk
Danish playwright and pastor
Kaj Hansen
Danish footballer
Kaj in Pop Culture
Kaj
Danish children's books
Historical Events
1920
Kaj Munk begins writing influential plays.
1944
Kaj Munk martyred during WWII.
International Variations
Kaj in Different Scripts
كاج
Arabic
凯
Chinese (Mandarin)
カイ
Japanese (Katakana)
카이
Korean
קאי
Hebrew
Κάι
Greek
Кай
Cyrillic
कै
Hindi (Devanagari)
Nicknames & Short Forms
Middle Name Suggestions
Beautiful middle name pairings with Kaj:
Kaj Anders
Kaj Johan
Kaj Erik
Kaj Nils
Kaj Soren
Kaj Lars
Kaj Mads
Kaj Henrik
Fun Facts & Trivia
Common in Denmark since the 1800s.
Means earth in some Frisian roots.
Short and strong for international use.
Similar Names You Might Love
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boyKay
Pure, beloved, or from the sea
boyKane
From Gaelic 'Cathán,' meaning 'little warrior' or 'fighter'.
boyKyle
Narrow strait or channel of water
boyKade
Round or gentle, possibly linked to 'barrel' or 'sturdy'
boyKael
Slender or mighty warrior, from Irish 'caol' meaning slim.
boyKian
Ancient; enduring, symbolizing timeless strength and heritage
boyKoen
Bold counsel or wise advisor, derived from ancient Germanic roots.
boyDaun
Dawn or valley dweller, evoking new beginnings.
boyFlemming
A native of Flanders in Belgium
boyPronunciation
KYE
Quick Facts
This page is reviewed by the Baby Billboard Charts editorial team. Rankings come from official U.S. Social Security Administration birth records, with descriptions checked for clarity and usefulness. See our Editorial Policy for our methodology and correction process.