Peacock is an English surname. Notable people with the surname include:
Musicians
Annette Peacock (born 1941), American musician
Charlie Peacock (born 1956), American musician
Dave Peacock (musician) (born 1945), English musician, one half of the duo Chas & Dave Francis Peacock (1723–1807), Scottish writer, dancer and musician Gary Peacock (1935–2020), American jazz double-bassist
Politicians and judges
Alexander Peacock (1861–1933), Australian politician
Andrew Peacock (1939–2021), Australian politician
Barnes Peacock (1810–1890), English judge
Barrow Peacock (born 1970), Louisiana politician
Caleb Peacock South Australian businessman and politician
Elizabeth Peacock (born 1937), British Conservative politician
Hugh Peacock, Canadian politician
John Michael Peacock, frontier leader and politician of the Cape Colony
John Thomas Peacock (1827–1905), New Zealand politician
Joseph Peacock (businessman), South Australian businessman and politician
Millie Peacock (1870–1948), Australian politician, first woman elected to the Parliament of Victoria Peter Peacock (born 1952), Scottish politician Stephanie Peacock (born 1986), British politician Thomas Peacock (politician) (1837–1922), New Zealand politician
Sportspeople
American football (gridiron) David Peacock (American football) (1890–1944), American college football player, coach and politician Johnny Peacock (American football) (born 1947), American football player
Baseball
Brad Peacock (born 1988), American baseball pitcher
Johnny Peacock (1910–1981), American baseball catcher
Matt Peacock (baseball) (born 1994), American baseball pitcher
Football (soccer) Alan Peacock (born 1937), English footballer Darren Peacock (born 1968), English footballer Ernie Peacock (1924–1973), English footballer Keith Peacock (born 1945), English footballer Gavin Peacock (born 1967), English footballer Joe Peacock (1897–1979), England footballer John Peacock (footballer) (born 1956), manager of the England national under-17 football team Lee Peacock (born 1976), Scottish footballer Richard Peacock (footballer) (born 1972), English footballer Tom Peacock (1912–?), English educator and footballer