Plural of “potato”

The plural of potato is potatoes.

Why

"Potato" comes from Spanish "patata," itself borrowed from a Taino (Caribbean indigenous) word, and it follows the English spelling convention that most native and long-established -o-ending nouns take -es in the plural, giving "potatoes" rather than a bare "potatos."

The -o/-oes split isn't one tidy rule so much as a historical tendency: words that entered English early and became fully naturalized — potato, tomato, hero, echo among them — mostly settled on -es, while more recently borrowed or technical -o words like piano, photo, halo, and memo simply add -s, and there's no way around learning the split word by word rather than deriving it from spelling. Cookbooks and farming guides constantly sort potatoes by variety and intended use — starchy types suited to baking, waxy ones better for boiling and salads — a culinary distinction with nothing to do with grammar but very much part of the everyday context surrounding the plural word.

Usage note

There's no shortcut rule that reliably predicts -oes versus -os for every English -o noun; "potatoes" is fixed and essentially universal, unlike "volcano," which genuinely accepts both "volcanoes" and "volcanos" as standard, making "potato" one of the more settled members of this otherwise inconsistent word family.

"Couch potato," a common idiom for someone who spends excessive time watching television, pluralizes fully regularly following the base noun's own pattern ("couch potatoes"), showing the -oes ending extends naturally into even the word's most casual figurative use. The Irish Potato Famine of the 1840s remains one of the most significant historical events tied to this single crop, a devastating period during which the plural "potatoes" appeared constantly in period writing describing crop failure and its catastrophic human toll. Regional dishes built around potatoes vary widely across cultures, from mashed potatoes in American cooking to distinct preparations found in Andean, Irish, and Eastern European cuisines.

Common real mistakes

Writing "potatos" is a well-known, frequently mocked spelling error in American political history (a 1992 vice-presidential spelling-bee incident became a lasting cultural reference point), and it remains one of the most commonly misspelled plurals in everyday English despite the rule itself being simple to state. A further point worth noting: "potato chip" and "potato salad," both fixed compounds built on the singular "potato," pluralize only on their final element ("potato chips," "potato salads"), keeping "potato" itself unchanged within the compound regardless of quantity.

The wider pattern

"Potato" belongs to the same -o/-oes group as "tomato," "hero," and "echo" — older, fully naturalized -o nouns that consistently take -es, in contrast to newer or more technical -o words like "photo" and "piano," which simply add -s.

Examples

• She peeled a dozen potatoes for the stew.
• The farm grows several varieties of potatoes each season.
• Both potatoes were roasted until golden and crisp.
• He mashed the potatoes with butter and warm milk.
• The market sold potatoes fresh from the local harvest.
• Farmers rotate potatoes with other crops to preserve soil quality.
• She diced the potatoes into even, bite-sized pieces.
• The recipe called for exactly four medium potatoes.
• Ireland's history is deeply tied to the cultivation of potatoes.
• The stand sold potatoes, onions, and carrots by the pound.
• The farmers market sold at least five distinct varieties of potatoes.
• She baked the potatoes for nearly an hour until they were tender.
• The chef roasted the potatoes with rosemary and olive oil.
• Farmers stored the potatoes in a cool, dark cellar through winter.
• The soup recipe called for diced potatoes and leeks.
• She grew several potatoes in a small raised garden bed.
• The famine forced many families to abandon potato farming entirely.
• The bakery even sold a savory potato bread on weekends.
• The vendor sold potatoes by the bushel at the farmers market.