Billy Brown may refer to:

• Billy Brown (footballer, born 1900) (1900–1985), English professional footballer
• Billy Brown (footballer, born 1910) (1910–1993), footballer who played in the Football League
• William Brown (1928–2005), engineer and designer of the Messina Bridge
• Billy Brown (footballer, born 1950), Scottish football player and coach
• Billy Brown (Irish musician) (1943–1999), Irish musician and artist, and member of The Freshmen
• Billy Brown (Australian footballer) (born 1942), former Australian rules footballer who played in the VFL
• Billy Brown (actor) (born 1970), American actor
• Billy Brown (athlete) (1918–2002), American track and field triple jumper, long jumper, and sprinter
• Billy Ray Brown (born 1963), former American golfer
• Billy Brown (American football) (born 1993), American football tight end
• Billy Brown (singer) (born 1944), member of American rhythm and blues band Ray, Goodman & Brown
• William Denis Brown III (1931–2012), known as Billy, Louisiana politician
• Billy Aaron Brown (born 1981), American actor

• "Billy Brown", a song from the Mika album Life in Cartoon Motion
• "Billy Brown", song from the Third Day album Wire

• Billy Brown of London Town, character featured on London Transport posters
• Billy Brown (Coronation Street)

• Bille Brown (1952–2013), Australian actor
• Bill Brown (disambiguation)
• William Brown (disambiguation)
• Will Brown (disambiguation)
• Willie Brown (disambiguation)