Bellies or Bellys: Which Is Correct?

Updated 2026-10-12 · Which One Is Correct editorial team

Quick answer: The correct spelling is bellies, which is the plural form of belly, while bellys is a misspelling that should be avoided. This distinction matters because the plural suffix for words ending in a consonant sound is typically -ies, ensuring proper grammar and clear communication for everyone reading your content.

The Short Answer

The correct spelling is bellies, which is the plural form of belly, while bellys is a misspelling that should be avoided in standard English. People often confuse these two because the word belly ends with a consonant sound, making the plural form bellies rather than bellys according to standard grammar rules.

Confusion often arises because the spelling bellys looks intuitive to those who simply add an s to make it plural, or who are influenced by words that do end in -s like boys or cats. However, English spelling rules dictate that when a word ends in a vowel followed by a y, the y changes to i before adding the plural suffix, which applies perfectly to this word.

Side-by-Side Comparison

Form	Status	Use it when
bellies	Correct	Always use this form when referring to two or more stomachs or rounded parts.
bellys	Incorrect	Never use this form as it is a standard misspelling that should be corrected.
noun	Singular and Plural	Belly is the singular form for one stomach, and bellies is the correct plural form.
general	Any Region	This spelling rule applies to American, British, and other varieties of English.

Correct Example Sentences

The children played with their round bellies full of joy.
After the long swim, the dogs shook off water from their wet bellies.
She wore a dress that covered her entire bellies without any gaps.
The penguins have fluffy bellies that help keep them warm.
The caterpillars are spinning silk around their bellies to make cocoons.
The chef patted the bellies of the happy puppies at the end of the day.
The old tree had hollow bellies where birds used to nest safely.
The balloons had deflated bellies that looked sad and drooping.
The wrestlers showed off their strong bellies after the tough training.
The whales have huge bellies that hold a lot of water.

Common Mistakes and Fixes

The babies are crying with their bellys.: The babies are crying with their bellies.
Look at those big bellys on the pigs.: Look at those big bellies on the pigs.
She felt her bellys after eating too much.: She felt her bellies after eating too much.
The frogs have small bellys near the pond.: The frogs have small bellies near the pond.
He laughed at the cartoon characters with their funny bellys.: He laughed at the cartoon characters with their funny bellies.
The elephants have large bellies that they cannot hide.: The elephants have large bellies that they cannot hide.

A Quick Test You Can Use

To check if you are using the correct spelling, ask yourself if you are referring to more than one stomach or rounded area, and then choose the word that follows the standard rule for plurals ending in a consonant sound followed by a y. If you are describing multiple items or parts of the body, the word must be bellies, as this is the only accepted form in proper English writing.

Related Word Pairs

boy vs boys: Simply add an s because the word ends with a vowel.
city vs cities: Change the y to ies because the word ends in a vowel and y.
fly vs flies: Change the y to ies because the word ends in a vowel and y.
spy vs spies: Change the y to ies because the word ends in a vowel and y.
day vs days: Simply add an s because the word ends with a vowel.

Frequently Asked Questions

Why do people spell it bellys?

People often spell it bellys because they assume the plural is just formed by adding an s to the end of the word. This is a common error because many English words do form their plurals this way, but words ending in a vowel followed by a y require a different rule where the y changes to i before adding es.

Is bellys ever correct in any context?

No, bellys is never correct in standard English writing or speech. It is always a misspelling of the plural noun bellies, and using it will make your writing look unprofessional or incorrect to any reader familiar with basic grammar rules and spelling conventions.

How do I remember the right spelling?

You can remember the right spelling by thinking about other words that end in a vowel followed by a y, such as baby becoming babies or lady becoming ladies. In all these cases, the y changes to i when making the word plural, which is the same rule that applies to the word belly to create bellies.

Does the singular form ever change?

The singular form is always belly, and only the plural form changes to bellies. The singular does not take an s or any other suffix, while the plural form must strictly follow the rule of changing the final y to i before adding es to remain grammatically correct.