How do you say Merlin in Japanese?

There isn't a single, universally accepted translation for "Merlin" in Japanese. It depends on the context and the nuance you want to convey. Here are a few options:

* マーリン (Mārin): This is the most common and straightforward romanization of the name, using katakana, which is generally used for foreign words. It's easy to pronounce and readily understood.

* You could also use a more descriptive translation depending on Merlin's role in the story. For example, if he's a wizard, you might incorporate words like 魔術師 (majutsushi - magician) or 魔法使い (mahōtsukai - wizard) into a description.

Therefore, マーリン (Mārin) is the simplest and most practical way to say Merlin in Japanese.