|This article is about a/an companion/transformation device in Kamen Rider Kiva.|
- "Graceful yet Violent."
- ―Rey Kivat's motto before battling an enemy[src]
Rey Kivat (レイキバット Rei Kibatto) was an intelligent computer created by 3WA, as well as an artificial Kivat capable of transforming Takato into Kamen Rider Rey. It also blows the Key Fuestle to unseal Kamen Rider Rey's main weapon Gigantic Claw.
Rey Kivat was calm and passionate, but does not enjoy destroying his enemies, unlike Arc Kivat.