Chipmunks get their name from Indigenous North American languages. The word changed as English speakers adapted it.
If you have ever wondered why they are called chipmunks, the name traces back to Ojibwe and related Algonquian words for a red squirrel or a tree-descending squirrel.

The name stuck because it matched what people saw: a small striped rodent with quick movements, a chipping call, and a habit of darting around on the ground and in trees.
Early settlers also tried other names. Scientists later gave chipmunks a formal place in the rodent family tree.
The Name’s Indigenous Roots

The word behind “chipmunk” did not start in English. It grew out of Indigenous language forms tied to the animal’s appearance and behavior, especially its striped coat and fast movement.
Ojibwe And Odawa Connections
Ojibwe and Odawa speakers used related words to describe a red squirrel or a similar small tree-climbing animal. The term is often linked to ajidamoo, and related forms helped shape the English word over time.
From Ajidamoo To Ajidamoonh
Different regional forms mattered as the word moved between communities and languages. In some accounts, ajidamoo and ajidamoonh both reflect the same broad idea: a small squirrel-like animal with a strong visual identity.
Early Forms Like Chitmunk And Chitmuk
English speakers heard and wrote versions like chitmunk and chitmuk before “chipmunk” became standard. Those spellings capture the transition from Indigenous pronunciation to an English form people could say and remember.
How English Turned It Into “Chipmunk”

English speakers adapted a word they already heard. The result was a name that fit both the animal’s look and its sounds.
Why Settlers Adopted The Word
Settlers in North America needed a name for a small striped rodent they kept seeing. English speakers recorded the word in the 1800s and gradually settled on “chipmunk” instead of plain terms like ground squirrel.
The Role Of The Animal’s Chipping Call
The animal’s sharp, chipping vocalizations likely reinforced the name in English ears. That sound matched the quick, energetic way the rodent behaves, so the word felt memorable and fitting.
Other Old Names Like Ground Squirrel And Striped Squirrel
Before “chipmunk” won out, people also used descriptive names such as ground squirrel, striped squirrel, and small striped squirrel. Those labels made sense because chipmunks are small, striped rodents, even though they are not just any rodent.
What Animal The Name Refers To

The name refers to a specific group of squirrel relatives, not a random small rodent. Chipmunks belong to a branch of the squirrel family that includes ground-dwelling forms with striped backs and cheek pouches.
Where Chipmunks Fit In Rodentia
Chipmunks are rodents. They sit within Rodentia, the large mammal order that includes mice, rats, squirrels, and many other species.
Their place in this group explains why they share traits with other rodent species, like continuously growing incisors.
The Sciuridae Family And Tamiina
Chipmunks belong to the Sciuridae family, the squirrel family, and more specifically to the subtribe Tamiina. That grouping separates them from other striped rodents and places them among animals that store food and move quickly through mixed ground-and-tree habitats.
Why They Are Squirrel Relatives Rather Than True Tree Squirrels
Chipmunks are squirrel relatives, yet they are not the same as the bigger tree squirrels you may see racing through branches. They spend much more time on the ground, though they still climb when they need to gather food or escape danger.
Species That Shaped The Modern Meaning

Different chipmunk species helped make the common name feel familiar across North America and beyond. Some species became especially well known, while others were grouped into genera that changed as scientists refined classification.
The Eastern Chipmunk As The Best-Known Example
The eastern chipmunk, tamias striatus, is the species most people in the U.S. picture first. Older natural history texts such as viviparous quadrupeds of North America helped spread that familiar picture.
The Siberian Chipmunk In A Separate Genus
The Siberian chipmunk, eutamias sibiricus, lives in Asia and gave scientists a useful comparison point. Because it stands apart from the eastern species, it helped shape how biologists talked about tamias, eutamias, and other chipmunk species.
Western Species In Neotamias And The Extinct Nototamias
Many western species now belong to neotamias. These include the least chipmunk, alpine chipmunk, california chipmunk, uinta chipmunk, red-tailed chipmunk, and hopi chipmunk.
Their scientific names are neotamias minimus, neotamias umbrinus, neotamias alpinus, neotamias obscurus, and neotamias ruficaudus. The extinct nototamias shows that the chipmunk story also includes species no longer living.
The modern name now covers a broader group than people once imagined.