Plural of Potato

What Is the Plural of Potato?

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The Quick Answer

The plural of "potato" is "potatoes."

Nearly a third of the world's potatoes were harvested in China and India.
Potatoes are used to brew alcoholic beverages such as vodka, potcheen, or akvavit.

The noun "potato" adheres to the standard rules for forming the plurals of nouns in English (shown in the table below).

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The Standard Rules for Forming the Plurals

The table below shows the standard rules for forming the plurals of nouns in English.

Type	Example of Type	Forming the Plural	Plural
Most Nouns	lamp scythe	add s	lamps scythes
Noun Ending s, sh, ch, x or z	bus dress	add es	buses dresses
Nouns ending [consonant] o	potato zero	add either s or es (There are no rules for this - you have to know.)	potatoes zeros
Nouns ending [vowel] o	patio ratio	add s	patios ratios
Nouns ending [consonant] y	story penny	change the y to an i and add es	stories pennies
Nouns ending [vowel] y	storey () donkey	add s	storeys donkeys
Nouns ending f or fe	dwarf knife	ves and/or s (There are no rules - you have to know.)	dwarfs knives
Exceptions	man louse	some nouns undergo a vowel or letters change	men lice
More exceptions	salmon sheep	some nouns do not change at all	salmon sheep

Why Is There Confusion over the Plural of Potato?

There is confusion because the rule for forming plurals with nouns ending in "o" isn't straightforward. Most nouns will just add an "s." For example:

"Kangaroo" becomes "kangaroos."
"Piano" becomes "pianos."

Some add es. For example:

"Echo" becomes "echoes."
"Torpedo" becomes "torpedoes."

With some words, both versions are accepted. For example:

"Volcano" becomes "volcanoes" or "volcanos."
"Halo" becomes "haloes" or "halos."

The plural of "potato" is always "potatoes." Unfortunately, there is no clever way of knowing which nouns ending "o" follow which rules. You have to know. (For example, you have to know that "potato" becomes "potatoes," but "piano" becomes "pianos.")

Beware

Don't Use an Apostrophe to Form a Plural

Adding 's is never an option when forming the plural of a noun. Despite this simple rule, inexperienced writers often feel compelled to add an apostrophe, especially when the noun ends with a vowel (e.g., piano, tomato, emu). For example: