Thomas Peacock may refer to:
Thomas Peacock (businessman), South Australian businessman and politician Thomas Peacock (politician) (1837–1922), New Zealand politician Thomas Bevill Peacock (1812–1882), English physician Thomas Love Peacock (1785–1866), English author Tom Peacock (1912–?), English educator and footballer
See also John Thomas Peacock (1827–1905), New Zealand politician Peacock (surname)