Nope, its up to you. I love changing villagers names. I feel that it makes them more special and unique.

Also:
Swahili - a tanzanian language and an inhabitant of coastal eastern Africa

Toto - The default scratch file name among French-speaking programmers

Oro - gold in spanish and italian

Salote - the queen of Tonga

Kalau - "if" in indonesian

If you want to know what any more names mean, I would be happy to research them for you.