Why Is a Baby Koala Called a Joey?

Q: What is a baby koala called?

A baby koala is called a joey. Koala joeys are born the size of a kidney bean

Q: What other animals are called joeys?

Yes! 2 animals share the baby name "Joey": kangaroo, koala.

The story behind the baby animal name “Joey” — its origin, meaning, and history.

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Baby Animal Names Editorial Team

·Updated 2025

Quick Answer

A baby koala is called a joey. "Joey" likely from an Aboriginal Australian word — used for all marsupial babies including koalas, kangaroos, wombats, and opossums.

The Origin of “Joey”

"Joey" likely from an Aboriginal Australian word — used for all marsupial babies including koalas, kangaroos, wombats, and opossums.

Understanding where baby animal names come from helps us appreciate the rich history of the English language. Many baby names evolved from practical needs — farmers, hunters, and scientists needed specific terms to distinguish young animals from adults.

Other Animals Called “Joey”

“Joey” isn't unique to koalas.2 animals share this baby name:

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Kangaroo → Joey

Wild Animals

See all animals called “Joey” →

Fun Facts About Baby Koalas

•Koala joeys are born the size of a kidney bean
•They ride in the pouch for about 6 months
•Joeys eat "pap" — special feces to get gut bacteria
•After leaving the pouch, joeys ride on mom's back

Did You Know?

Koala joeys eat their mother's special droppings called "pap" to digest eucalyptus!

How to Pronounce “Joey”