Deneau Family History
Deneau Name Meaning
French: habitational name with fused preposition de ‘from’ denoting someone from Neau a place in Mayenne. French: from a variant of the personal name Daniau the northern form of Daniel in which the final syllable -(i)el has been vocalized. Altered form of French Deniau a cognate of 2 above. Compare Dano Denault Denio and Denno .
Source: Dictionary of American Family Names 2nd edition, 2022