Kim ( it stays the same)
キム
Ciao, mi chiamo Kim. Come stai?
The name Joanne in Spanish is translated as Juana.
Chad
Since Kim is a proper noun, it does not translate to Spanish, so therefore the spelling would remain the same.
The Spanish name for Alyssa is often translated as Alisa.
Noah, as in the Biblical character and the name in general, is translated as: Noé.
The closest translation of Eileen in Spanish is Elena. My name is Eileen and it's my Spanish name.
Names are usually not translated. In any case, "Daniel" is a common name both in English and in Spanish.
Byron is a person's name; it is not translated.
Rosalia.
Gato.