Similar in meaning (meaning "song" or "joy"):
* Carolina: This is the most common and widely accepted Spanish equivalent. It is a popular name with a similar sound and meaning.
* Canción: This translates directly to "song" and is a more poetic option.
Similar in sound:
* Carola: This is a shortened form of Carolina and is a lovely alternative.
* Carina: This name is similar in sound and is a popular choice in Spanish-speaking countries.
Ultimately, the best Spanish name for Carolyn would depend on your preference and the context.