Free man
Carle is a rare feminine variant of the Germanic name Karl, which evolved into Charles. It shares the same etymological root as the word 'churl', originally meaning a free person of the common class. While more commonly seen as a surname or a masculine name, it is used occasionally as a distinctive feminine choice.
Less common today
Carle isn't in the latest US Top 1000. It last peaked at #9,655 in 1992.
US births per 5-year period, 1990βpresent (SSA data).
A minor character in the fantasy series Β· The Wheel of Time