How to write Savannah in Japanese
In Japan, Savannah is written in katakana: サバンナ, pronounced “sabanna”. That's the spelling to use on a form, a name tag, or when you introduce yourself.
The kanji above are ateji — characters picked because they sound like the name. There's no single official version, so go with the one whose meaning you like best.
Savannah in kanji, character by character
More names in Japanese
Kanji meanings from KANJIDIC2 © EDRDG (CC BY-SA 4.0).