What is Alice's pet cat named in the novel?

Alice’s pet cat in Alice’s Adventures in Wonderland is named Dinah.

Alice mentions Dinah early in the novel, while sitting beside her sister before falling asleep. Alice imagines that Dinah might catch a mouse or bird and later talks about her cat while in Wonderland. Dinah’s ordinary domestic life provides a contrast with the strange animals and impossible creatures Alice encounters underground.

The name is easy to confuse with Kitty and Snowdrop, but those are Dinah’s kittens in Through the Looking-Glass, the 1871 sequel. In the original Wonderland story, Dinah is Alice’s cat and familiar companion, although she never travels down the rabbit hole with Alice.

Dinah also becomes part of Alice’s attempts to explain normal-world ideas to Wonderland’s animals. During the Caucus Race, Alice’s mention of Dinah’s hunting abilities alarms the creatures, who understand her cat as a dangerous predator. This small joke helps show how ordinary facts become unsettling in Wonderland.