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Deian
Pronounced DAY-an /ˈdeɪ.an/Medium
Meaning: A Welsh affectionate name, sometimes a pet form of Dei (from David, 'beloved'); separately a Romanian name (a form of Dan/Deian). Routes partly uncertain, which we note; used respectfully across both.Low
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
Deian is a Welsh name, sometimes an affectionate form of Dei (from David, 'beloved'), and separately a Romanian name. Because it lives in two traditions, its route here is partly uncertain, which we note. We use it respectfully across both (said 'DAY-an').
In the U.S. it appears rarely. Soft, heritage-flavored, and cross-cultural.
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Frequently Asked
What does the name Deian mean?
Deian is a Welsh name (sometimes 'little David') and a Romanian name; routes are partly uncertain, which we note.
How do you pronounce Deian?
It's said DAY-an /ˈdeɪ.an/ — two syllables, stress on the first.
Is Deian a boy or girl name?
Deian is a boy's name.
How popular is Deian?
Deian is a rare name in the U.S.