How do you spell Ronnie in French?

There isn't a direct, standard French translation for the name "Ronnie". You have a few options depending on the context and desired meaning:

Formal:

* Ronnie - This is the most straightforward option, simply using the English spelling. It would be understood, though might sound a bit foreign to French speakers.

Informal, emphasizing the origin:

* Roni - This is a shortened version commonly used in English, and would be understood by French speakers.

Informal, with a French twist:

* Ronny - This is a more French-sounding version of the name.

Ultimately, the best way to spell "Ronnie" in French depends on your desired level of formality and how you want to emphasize the origin of the name.