Heydun as a Baby Name. Meaning and Origin of Heydun

What is the meaning of the name Heydun ?

The baby name Heydun is a Unisex name , 2 syllables long and is pronounced HAY-dun (ˈheɪdən).

Heydun is Irish in Origin.

Heydun blends Old English roots with modern style. It most closely parallels the toponymic surnames Heydon and Haydon, from hæg or heg, meaning hay or hedge/enclosure, plus dun, hill. The sense is "hay hill" or "enclosed hill," with some historical conflation with the -denu, valley, branch that produced Hayden. The updated spelling highlights dun "hill," while sitting alongside the related but etymologically separate German surname Haydn, which influenced given-name use by association only.

As a given name, Heydun is a rare contemporary variant that rides the broader popularity of Hayden and the -ayden cluster in the late twentieth and early twenty-first centuries across the United States, Canada, the UK, and Australia. It is used for all genders. Common variants include Hayden, Haydon, Heydon, Haydn, Haiden, and Haidon; short forms include Hay, Haze, and Den. Pronunciation: HAY-dən or HAY-dun.

⚙ Heydun turns up in none of the birth registries or name datasets we cover. Most often that means a rare name, a regional or heritage one, or a recent coinage. By any reading, it's an exceptionally uncommon choice.