1) Celtic girl name 
Donia is a Celtic name for girls. The meaning is `mighty, world` The name Donia is most commonly given to French girls. (30 times more often than to American girls.) The name sounds like: Tonia, Dania, Denia, Dona, Donya Similar names are: Doncia, Donika, Donita, Donica, Doria, Docia, Ionia, Sonia, Dosia, Zonia