Cookie (ペリーヌ ,Perīnu?, Perine) is a peppy dog villager in the Animal Crossing series. She was absent from Animal Crossing: Wild World, but returned in Animal Crossing: City Folk. Cookie is so called because of her cute appearance or because treats for dogs are sometimes called cookies. Her initial catchphrase, "arfer", is a variation of the word "arf", the sound a dog makes. She appears on the  cover for DJ K.K.

Cookie is a pink dog with a white stripe that starts from the top of her head and goes down to encircle her muzzle. Her eyes are somewhat anime-styled and her paws and tail tip are white. Cookie's brown nose resembles a chocolate , hence her name Cookie. She has a brown smile and her ears are a darker shade of pink than her body. Initially she wears a Blue Tartan shirt.

As a peppy villager, Cookie will always appear to be in a good mood. She will get along with other villagers, including the player. She will enjoy the usual hobbies and may ask the player for bugs or fish that she finds cute. Cookie gets upset easily, but due to a short attention span, she will just as easily forget ever having the conversation. Like all peppy villagers, she dreams of becoming famous in the . She will get on well with normal, lazyjock, and other peppy villagers, but may  annoy snooty and cranky villagers with her upbeat, cheery personality. Cookie loves fossils and clothes and will ask for them often.

In Animal Crossing: New Leaf, Cookie's house has less of a country theme, but she still has part of the Ranch Series, such as the dresser, the hutch, and the bed. She also has part of the Patchwork set, and some plants, like the Pachira and the White Violets. She plays DJ K.K. on her Record Player.