Postlethwaite

Postlethwaite is an English surname. Notable people with the surname include:
 * Billy Postlethwaite (born 1989), English actor
 * Claire Postlethwaite, New Zealand mathematician
 * Harvey Postlethwaite (1944–1999), British Formula One engineer
 * Jane Postlethwaite, British comedian
 * Jude Postlethwaite (born 2002), Irish rugby union player
 * Lily Postlethwaite (born 2001), Australian rules footballer
 * Matt Postlethwaite (born 1996), English rugby union player
 * Matthew Postlethwaite (born 1991), British actor
 * Pete Postlethwaite (1946–2011), British actor
 * Thomas Postlethwaite (1731–1798), English mathematician
 * William Postlethwaite (1829–1908), New Zealand politician