Near Threatened Mammal
Jaguar
The Americas' largest and most powerful cat
Read the guideAnimals that start with J
There are 3 animals that start with the letter J, including the Jaguar, Jellyfish, Jumping Spider, and more. See photos, facts, and full guides for each.
Near Threatened 
Least Concern Invertebrate
Jellyfish
The ancient, brainless drifter of the seas
Read the guide
Least Concern Invertebrate
Jumping Spider
The big-eyed spider that pounces on its prey
Read the guideAnimals that start with J: FAQs
What animals start with the letter J?
Animals beginning with J include Jaguar, Jellyfish, Jumping Spider.
How many animals begin with J?
Our guide currently covers 3 animals whose names start with J.