Donavan is an English name for boys. The meaning is `great chief, mighty` The name Donavan is most commonly given to American boys. What do they use in other countries? Donovan (Irish) The name sounds like: Donavon, Donovon, Donoven, Donevon, Donevin Similar names are: Delavan, Donnan Found on https://www.pregnology.com/names/boys/Donavan