* "Tshairl" (pronounced "chairl") - This is the most common transliteration of "Charles" into Yiddish, and is often used in both written and spoken Yiddish.
* "Shmuel" - This is a Hebrew name that means "heard by God", and it's often used as a translation for "Samuel". While not a direct translation of "Charles", it could be used as a Yiddish equivalent due to the similar meaning and sound.
Ultimately, the best way to translate "Charles" into Yiddish would depend on the context and the specific meaning you're trying to convey.