What is the special name for people that speak fluent french?

There isn't a single, specific term for people who speak fluent French. However, you can use these descriptions:

Formal:

* Fluent French speaker

* Native French speaker (if they are from a French-speaking country)

* Bilingual (French and [other language])

* Proficient in French

Informal:

* French speaker

* Someone who speaks French fluently

You can also use descriptive phrases:

* Someone who speaks French like a native

* Someone who is very good at French

Ultimately, the best term depends on the context and your intended audience.