Read below for information on 16 different animals that start with the letter I, from ibis to indri. The most popular animal that starts with the letter I is the iguana, a common exotic pet. The least popular I animal is the Indian Star Tortoise, so named for the unique star patterns on its shell. Some fun facts about letter I name animals are:
- Impalas can jump as high as 10 feet and run over 50 miles an hour
- Indian palm squirrels are considered sacred in India and an invasive species in Australia
- Often domesticated and previously used in battle, the wild Indian elephant population is estimated at only about 20,000 today.
Popular Animals starting with I

Immortal Jellyfish
Excellent hitchhiker on long-trip cargo ships

Irish WolfHound
Sweet-tempered, patient and thoughtful!
Animals that Start with I
We’ve broken down all of our animals into family groups. You’ll find mammals, birds, fish, reptiles, amphibians, insects, and other invertebrates below!
Jump to a specific list:
- Mammals that Start with I
- Birds that Start with I
- Fish that Start with I
- Reptiles that Start with I
- Amphibians that Start with I
- Insects that Start with I
- Other Invertebrates that Start with I
Mammals that Start with I

Ibis
Found in swamps, marshes and wetlands!

Ibizan Hound
Intelligent, active and engaging by nature!

Impala
Able to jump over 10 feet high

Indian Elephant
Found throughout south-east Asia!

Indian Palm Squirrel
Natively found in parts of India and Sri Lanka!

Indian Rhinoceros
Also known as the one-horned rhino!

Indochinese Tiger
Now thought to be extinct in China!

Irish Doodle
Irish Doodles can be very active dogs, but they also love just hanging out with their family members in the house.

Irish Setter
Can live for up to 16 years!

Irish WolfHound
Sweet-tempered, patient and thoughtful!

Italian Greyhound
The Italian Greyhound is a miniature dog with a big motor and personality!
View all mammals.
Birds that Start with I
No animals found.
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Fish that Start with I

Immortal Jellyfish
Excellent hitchhiker on long-trip cargo ships
View all fish.
Reptiles that Start with I

Iguana
Uses visual signals to communicate!

Indian Star Tortoise
Popular in the exotic pet trade!
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Amphibians that Start with I
No animals found.
View all amphibians.
Insects that Start with I

Insects
There are an estimated 30 million species!
View all insects.
Other Invertebrates that Start with I

Immortal Jellyfish
Excellent hitchhiker on long-trip cargo ships
View all invertebrates.
Alphabetical List of Animals That Start with I
Newest Animals that Start with the Letter I
The most recently added Animals that start with the letter I.

Irish Doodle
Irish Doodles can be very active dogs, but they also love just hanging out with their family members in the house.

Italian Greyhound
The Italian Greyhound is a miniature dog with a big motor and personality!

Immortal Jellyfish
Excellent hitchhiker on long-trip cargo ships

Animal by Letter Lists
- Animals that Start with A
- Animals that Start with B
- Animals that Start with C
- Animals that Start with D
- Animals that Start with E
- Animals that Start with F
- Animals that Start with G
- Animals that Start with H
- Animals that Start with I
- Animals that Start with J
- Animals that Start with K
- Animals that Start with L
- Animals that Start with M
- Animals that Start with N
- Animals that Start with O
- Animals that Start with P
- Animals that Start with Q
- Animals that Start with R
- Animals that Start with S
- Animals that Start with T
- Animals that Start with U
- Animals that Start with V
- Animals that Start with W
- Animals that Start with X
- Animals that Start with Y
- Animals that Start with Z