William Bernard

William Bernard may refer to:

• William Bernard (sailor) (fl. 1849), sailor known as the notorious "Barnacle Bill" of American yore
• William Bayle Bernard (1807–1875), American-born London playwright and drama critic
• William Larkins Bernard (1843–1922), English architect
• William Smyth Bernard (1792–1863), Irish politician

• Billy Bernard (born 1991), Luxembourger international footballer
• Will Bernard, American guitarist and band leader