There were several different names for the Nine-Tailed Fox throughout development: Ezreal himself referred to the Nine-Tails as Gumiho (구미호). The more common name Kumiho is a direct reference to the Nine-tailed fox from Korean mythology. A player found a poll for her name on the Riot Korea webpage, which gave 6 different options to vote for:
Danbi (단비) (meaning Saviour or Saving Rain)
Nabi (나비) (meaning Butterfly)
Ruri (루리) (meaning Dazzle)
Ari (아리) (meaning Graceful or Elegant)
Chorong (초롱) (meaning Glittering)
Dasom (다솜) (meaning Loving).
Ahri is voiced by Laura Post.
Ahri was simultaneously released (on all servers) with the launch of the Korean servers.
Her dance is based on the choreography for the song Run Devil Run by Girls' Generation (소녀시대; So Nyeo Shi Dae/SNSD), an extremely popular Korean girl group. A side-by-side comparison can be seen here.
Her passive,Essence Theft, previously shared its name with Nasus' passive - Soul Eater. The name was changed in a minor patch shortly after her release.
In the Champion Spotlight, Phreak refers to her passive as "Soul Eater".
Ahri's final design has fox ears, whereas her original design did not. Her clothes were also changed.
Her title on leagueoflegends.com is displayed as "the 9 Tails Fox", while in-game and spotlight are both "the Nine-Tailed Fox". The latter title is grammatically correct (see four-legged).
Dynasty Ahri is wearing modernized Hanbok (traditional Korean clothing). Additionally, Dynasty Ahri's dance is a traditional Korean dance.
The Midnight Ahri skin is also referred to as the Shadow Fox skin.