How do you say i speak many languages in french?

There are a few ways to say "I speak many languages" in French, depending on the level of formality and emphasis:

Formal:

* Je parle plusieurs langues. (Most common and straightforward)

* Je maîtrise plusieurs langues. (Emphasizes fluency)

Informal:

* Je parle plein de langues. (Literally "I speak a lot of languages")

* Je suis polyglotte. (More literal for "polyglot")

You could also use a phrase like:

* Je suis capable de parler plusieurs langues. (I am capable of speaking several languages)

The best option depends on the context and your desired level of formality.