Plural of “chateau”

The plural of chateau is chateaus (some dictionaries also accept chateaux).

Why

"Chateau" comes from French "château," meaning castle or manor house, ultimately from Latin "castellum." Like "bureau," it kept its French -x plural spelling when it entered English usage in the 19th century, primarily among travelers and writers describing the great country houses of France's Loire Valley and wine regions.

Because "chateau" remains more closely tied to specifically French subject matter than "bureau" does — wine labels, travel writing, French history — "chateaux" has stayed noticeably more common as the plural than "bureaux" has for "bureau," even in American English, since the word is still frequently used in contexts that want to signal its French origin.

Usage note

Either "chateaus" or "chateaux" is understood, but "chateaux" remains the more common choice specifically because so much writing about chateaus (wine, travel, French history) deliberately preserves French spelling conventions for atmosphere and precision.

In wine labeling and wine writing specifically, "chateaux" is close to universal, since wine estates named "Château [Name]" are themselves using the French spelling, and writers describing several such estates together follow suit with the French plural. Many surviving French chateaux were built or expanded during the Renaissance as noble families competed to outdo one another architecturally, and the word's continued association with that specific historical period and region is likely part of why "chateaux" has kept more of its French flavor in English than plainer words like "bureau" that drifted further from their original cultural context.

Common real mistakes

Some writers add an accent to the English plural ("château" without pluralizing correctly, or writing "chateaux's" as a possessive plural, which is redundant) — the plain plural is "chateaux" or "chateaus," with no apostrophe unless showing possession by multiple chateaus.

The wider pattern

Alongside "bureau," "plateau," "tableau," and "beau," "chateau" shows how French -eau nouns entered English as a batch during roughly the same centuries of French cultural influence, yet each has regularized toward English -s at its own pace depending on how tied it remains to specifically French contexts. Many French chateaux have been converted into hotels, wineries, or event venues rather than remaining private family residences, a shift driven partly by the immense cost of maintaining such large historic properties, and modern travel writing about visiting several such converted chateaux together relies almost exclusively on the plural "chateaux."

Examples

• The tour included visits to three chateaux along the Loire River.
• Several chateaus in the region have been converted into hotels.
• The wine came from one of the oldest chateaux in Bordeaux.
• Photographs of the chateaux lined the gallery's back wall.
• Two neighboring chateaus were once owned by the same noble family.
• The documentary compared chateaux built in different centuries.
• Wealthy collectors have restored several abandoned chateaux since the 1990s.
• The map marked chateaus open to public tours that season.
• Guides led visitors through the gardens of both chateaux.
• The auction catalog listed furniture salvaged from several French chateaux.
• The vineyard's two chateaux both date to the same century.
• Restoration work on the chateaux took nearly a decade to complete.
• The guidebook ranked the region's chateaux by architectural significance.
• Several chateaux were requisitioned for military use during both world wars.
• Several converted chateaux now operate as boutique hotels for tourists.
• The wine region's chateaux each maintain their own distinct architectural style.
• Restoration grants helped preserve two crumbling chateaux from further decay.
• The documentary crew filmed inside chateaux rarely open to the public.
• The vineyard's chateaux welcome visitors for tastings every weekend.
• Two neighboring chateaux merged their estates after a family marriage.
• Restoration crews replaced the roofs of both chateaux the same summer.
• The photography book features chateaux photographed in every season.
• The final chateau on the tour was also the oldest of the visit.