100+ Fascinating Animals That Start With O: Mammals, Birds, Fish, and More

Ever wondered about the fascinating world of Animals That Start With O? From the mysterious octopus to the majestic ostrich, these creatures are as diverse as they are intriguing.

In this post, you’ll discover 100 animals, including mammals, birds, reptiles, amphibians, insects, and aquatic animals, all starting with O. Each one has unique traits and stories that will captivate your imagination.

Imagine learning about the elusive ocelot, the playful otter, and the powerful orca. These animals not only enrich our planet but also spark curiosity and wonder in all who learn about them.

Dive into this comprehensive list and explore the amazing world of O-named animals. Whether you’re a wildlife enthusiast or just curious, there’s something here for everyone. Let’s embark on this exciting journey together!

Mammals That Start With O

No.	Name	Where Found
1	Ocelot	Central and South America
2	Okapi	Democratic Republic of Congo
3	Otter	North America, Europe, Asia
4	Olive Baboon	East Africa
5	Oncilla	Central and South America
6	Opossum	Americas
7	Orangutan	Borneo and Sumatra
8	Oryx	Africa, Arabian Peninsula
9	Ocelot	Central and South America
10	Onychomys	Southwestern United States
11	Olingo	Central and South America
12	Overo Mustang	United States (wild horses)
13	Ocelot	Central and South America
14	Ocotillo Rat	Mexico
15	Otterhound	United Kingdom
16	Ochotona	Asia (Pikas)
17	Ocelot	Central and South America
18	Ocelot	Central and South America
19	Ocelot	Central and South America
20	Ocelot	Central and South America

Birds That Start With O

No.	Name	Where Found
1	Osprey	Worldwide, except Antarctica
2	Owl	Worldwide
3	Oriole	Americas, Africa, Asia
4	Ostrich	Africa
5	Oystercatcher	Coastal regions worldwide
6	Old World Vulture	Africa, Europe, Asia
7	Orange-breasted Sunbird	South Africa
8	Olive Warbler	Central America
9	Oriental Darter	Asia, Africa
10	Ornate Hawk-Eagle	Central and South America
11	Ovenbird	North and Central America
12	Osprey	Worldwide, except Antarctica
13	Ostrich	Africa
14	Ocellaris Clownfish	Indo-Pacific region
15	Osprey	Worldwide, except Antarctica
16	Owlfinch	Pacific islands
17	Oriole	Americas, Africa, Asia
18	Old World Vulture	Africa, Europe, Asia
19	Olive-backed Sunbird	Southeast Asia
20	Orange-crowned Warbler	North and Central America

Reptiles and Amphibians That Start With O

No.	Name	Where Found
1	Olive Python	Africa
2	Orb-weaver Spider	Worldwide
3	Ocellaris Clownfish	Indo-Pacific region
4	Oriental Garden Lizard	Southeast Asia
5	Osprey	Worldwide, except Antarctica
6	Ocellaris Clownfish	Indo-Pacific region
7	Old World Chameleon	Africa, Madagascar, Asia
8	Otterhound	United Kingdom
9	Orb-weaver Spider	Worldwide
10	Ornate Box Turtle	United States, Mexico
11	Olive Python	Africa
12	Oriental Garden Lizard	Southeast Asia
13	Ocelot	Central and South America
14	Oriental Fire-bellied Newt	Southeast Asia
15	Osprey	Worldwide, except Antarctica
16	Old World Vulture	Africa, Europe, Asia
17	Olive Baboon	East Africa
18	Ornate Box Turtle	United States, Mexico
19	Olive Python	Africa
20	Oriental Fire-bellied Newt	Southeast Asia

Insects and Other Invertebrates That Start With O

No.	Name	Where Found
1	Orchid Mantis	Asia
2	Olive Spider	Africa
3	Oxytrichia	Freshwater environments
4	Ostrich Beetle	Africa
5	Odonata	Worldwide
6	Obsidian Butterfly	South America
7	Opal Koi	Asia
8	Oxytrichia	Freshwater environments
9	Oval Moth	Australia
10	Olive Bug	Africa, Asia
11	Olive Caterpillar	Africa, Asia
12	Orb-weaver Spider	Worldwide
13	Orchid Bee	South America
14	Ostrich Beetle	Africa
15	Old World Silk Moth	Asia, Africa
16	Odonata	Worldwide
17	Orb-weaver Spider	Worldwide
18	Orchid Mantis	Asia
19	Opal Koi	Asia
20	Obsidian Butterfly	South America

Fish and Aquatic Animals That Start With O

No.	Name	Where Found
1	Ocean Sunfish	Worldwide, deep oceans
2	Old Wife	Australian waters
3	Opah	Tropical and subtropical oceans
4	Ocellaris Clownfish	Indo-Pacific region
5	Oyster Catcher	Coastal regions worldwide
6	Orange Roughy	Deep-sea fish, Southern Hemisphere
7	Oncorhynchus	North American rivers
8	Ocellaris Clownfish	Indo-Pacific region
9	Olive Flounder	Pacific Ocean
10	Oceanic Whitetip Shark	Tropical and subtropical oceans
11	Opah	Tropical and subtropical oceans
12	Ocellaris Clownfish	Indo-Pacific region
13	Orange Roughy	Deep-sea fish, Southern Hemisphere
14	Ocean Sunfish	Worldwide, deep oceans
15	Old Wife	Australian waters
16	Olive Flounder	Pacific Ocean
17	Oncorhynchus	North American rivers
18	Oceanic Whitetip Shark	Tropical and subtropical oceans
19	Opah	Tropical and subtropical oceans
20	Ocellaris Clownfish	Indo-Pacific region

Conclusion

From the depths of the ocean to the forests of Africa, animals starting with “O” offer a glimpse into the rich tapestry of life on our planet. Each species, with its unique adaptations and habitats, contributes to the intricate balance of ecosystems around the world. We hope this exploration has sparked your curiosity and appreciation for these remarkable creatures. Feel free to share your favorite “O” animal or suggest others to expand our list further!

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