Derived from the Latin 'Denis', which means 'follower of Dionysius', Denni is a unisex given name. It gained prominence during the Middle Ages, likely influenced by the popularity of Saint Denis, the patron saint of France who was beheaded and subsequently turned his head to face the direction from which he saw Heaven. The name has been used across various cultures and time periods, with notable figures including Denni Pate, an American actress born in the late 20th century.
The name Denni experienced fluctuations in popularity over the years, with peaks in the late 70s and early 80s, followed by a steady decline from the mid-90s onwards, with recent years seeing a slight uptick again.