Beau may refer to:
- Beau (name), a list of people and fictional characters with the given name, nickname or surname
 - Beau (guitarist) (born 1946), songwriter and 12-string guitar specialist
 - Beau (grape), another name for the Italian wine grape Trebbiano
 - Neoregelia 'Beau', a hybrid cultivar
 - "Beau" (poem), a poem by James Stewart
 - The Beau, a short-lived Irish literary journal
 - Beau's All Natural Brewing Company, a Canadian microbrewery
 - Bristol Beaufighter, a British fighter in World War II
 
See also
- Beau Geste (disambiguation)
 - Beau Jack (1921–2000), American lightweight boxer born Sidney Walker
 - Beau Jocque (1953–1999), American zydeco musician born Andrus J. Espre
 - Beau Monga (born 1994), winner of New Zealand The X Factor
 - Beaux, a commune in France
 - Beaux (surname)
 - LeBeau (disambiguation)
 - Bo (disambiguation)