Old boy

Old boy or Oldboy or Old Boys may refer to:


 * Old Boys, male former pupils of schools in Britain, some schools in Australia, Canada, India, New Zealand, Trinidad and Tobago
 * Old boy network, social and business connections among former pupils of top male-only schools
 * A cadet who has attended St. John's Military School


 * Films
 * Oldboy (2003 film), South Korean film based on the manga, directed by Park Chan-wook
 * Oldboy (2013 film), American remake of the 2003 South Korean film, directed by Spike Lee
 * Old Boys (2010 film), Chinese short comedy film
 * Old Boys: The Way of the Dragon, 2014 Chinese film
 * Old Boys (2018 film), British film directed by Toby MacDonald


 * People
 * "Old Boy", nom de guerre of Australian sports journalist Reginald Wilmot (1869–1949)


 * Sports teams and clubs
 * BSC Old Boys, Basel, Switzerland
 * Newell's Old Boys, Argentine football club
 * Old Boys' AFC, semi-professional football team based in Invercargill, New Zealand
 * Old Boys & Old Girls Club, Montevideo, Uruguay


 * Other
 * Old Boy (manga), manga series
 * Old Boy (TV series), Chinese television series