Denni
Denni meaning: Combination of Deana (divine) and Dina (from the valley; avenged).
Denni origin: English
Denni gender: Female

Dennie
Dennie meaning: Variant of Dionysius. Dionysius is the mythological Greek God of wine responsible for growth of the vines and the originator of winemaking: (equivalent to the Roman God Bacchus).
Dennie origin: English
Dennie gender: Male

Dennis
Dennis meaning: Of Dionysius.
Dennis origin: Greek
Dennis gender: Male

Dennise
Dennise meaning: Feminine form of Denis from the Greek name Dionysus. .
Dennise origin: French
Dennise gender: Female

Dennison
Dennison meaning: Dennis' son.
Dennison origin: English
Dennison gender: Male