I originally named my chocobo 'Kweh' back in 2.0, because I got the chocobo when I was tired, sleep deprived, and feeling uncreative, and just needed to type in something as a name. Then I changed it to 'Kiwi' instead when I was slightly more awake, for... reasons I honestly don't remember. But he's been Kiwi ever since.

The best name I've seen in game, though, is "Kwehzalcoatl"; I genuinely wish I'd thought of that one, because it's freakin' brilliant.