John Rennie

John Rennie may refer to:
 * John Rennie the Elder (1761–1821), engineer (factories, canals, design of London Bridge)
 * Sir John Rennie the Younger (1794–1874), engineer (rail lines, completion of London Bridge)
 * John Rennie (naval architect) (1842–1918), naval architect
 * Sir John Rennie (MI6 officer) (1914–1981), Director of MI6
 * John Rennie (soccer) (born c. 1944), American soccer coach
 * John Rennie (editor) (born 1959), editor-in-chief of Scientific American, 1994–2009
 * John Rennie (cricketer) (born 1970), Zimbabwean Test and ODI cricketer
 * John Gillies Rennie (1904–1952), Quebec politician and educator
 * John Rennie High School, Quebec, Canada, named for John Gillies Rennie
 * John Rennie (GC) (1920–1943), British recipient of the George Cross
 * John Shaw Rennie (1917–2002), Commissioner-General of UNRWA
 * John T. Rennie (1824–1878), Scottish ship-owner
 * John Rennie Short (born 1951), Scottish geographer and public policy academic