John or Johnny Orr may refer to:

• John Boyd Orr (1880–1971), Scottish doctor, biologist, politician and Nobel peace laureate
• Sir John Orr (police officer, born 1918) (1918–1995), Scottish police officer and the first chief constable of Lothian & Borders Police
• John Herbert Orr (1911–1984), American entrepreneur
• John Leonard Orr (born 1949), American arsonist, former fire captain and arson investigator
• John Orr (bishop) (1874–1938), Bishop of Tuam, Killala, and Achonry
• John Orr (businessman), founder of John Orr's, a South African department store chain
• Sir John Orr (police officer, born 1945) (1945–2018), Scottish police officer, Chief Constable of Strathclyde Police (1996–2001)
• John Orr (rugby union), Scottish rugby football player
• John Orr (scholar of French) (1885–1966), British linguist
• John Stewart Orr (1930–2001), Scottish medical physicist and researcher
• Johnny Orr (basketball, born 1918) (1918–1982), American basketball and baseball player
• Johnny Orr (basketball, born 1927) (1927–2013), American basketball player and coach
• John William Orr (1815–1887), known professionally as J. W. Orr, prominent American wood engraver
• John Orr (bowls, born 1870) (1870–?), Scottish lawn bowler
• John Orr (bowls, born 1995), Scottish indoor bowler
• John Orr (priest), Irish Anglican priest

• John Orr's, former department store in South Africa
• Orr (disambiguation)
• Orr (surname)

This disambiguation page lists articles about people with the same name.
If an internal link led you here, you may wish to change the link to point directly to the intended article.