Duff is a boy name with roots in Scottish and Celtic culture. From the Gaelic 'dubh' (dark, black) - originally a byname for a dark-haired or dark-complexioned man.
The numerology number for Duff is 8, reflecting the personality traits and characteristics associated with this name.
Origin : scottish, celtic
Gender : boy
Numerology : 8
Syllables : 1
Last updated 21 October 2026 · How we research names · Report a mistake
In numerology, the name Duff reduces to the number 8, which is most often linked to ambition, authority, accomplishment. A person carrying this vibration is often confident and goal-driven - focused on building something tangible, whether a career, a business, or a legacy that outlasts them.
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Names starting with D
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