I'm from Poland. In Polish
Artemis is called Artemida(ahr-teh-MEE-dah) (similarly in Italian
Artemis is called Artemide). In Polish
Aphrodite is called Afrodyta(ah-froh-DIH-tah),
Persephone is called Persefona(pehr-seh-FOH-nah), etc. Mythological names are usually translated into different languages, they don't just take the Greek forms in every language.
You can look up
Artemis on wikipedia and click on the translations to see the interesting forms the name takes in different languages. They are all accurate for the languages I speak(can't vouch for all the others).