Costley is a surname. Notable people with the surname include:
*
Madeline Costley, fictional character on the Fox TV series ''Dollhouse''
*
Edward Costley
Edward Costley (1794 – 18 April 1883)
was a New Zealand philanthropist.
Costley was born in Ireland to John and Anne Costley. Costley was known among the "old identities" of Auckland as a man of rather penurious and retiring habits, who had ac ...
(1794–1883), New Zealand philanthropist
*
James Costley
James Costley (Liverpool Q1 1862 – Q1 1931 in Blackburn) was an English footballer who played in the Football League for Everton.
James Costley, although from Merseyside, signed for Blackburn Olympic in 1879. Blackburn Olympic never played L ...
(1862–1931), English footballer
{{Surname