Richard Johnston
Richard Johnston may refer to:
Politics
- Richard Johnston (died 1706), MP for Clogher (Parliament of Ireland constituency)
 - Sir Richard Johnston, 1st Baronet (1743–1795), MP for Kilbeggan and Blessington
 - Archibald D. Johnston (1940–2003), popularly known as Dick Johnston, provincial politician, Alberta, Canada
 - Richard Johnston (Ontario politician) (born 1946), provincial politician, Ontario, Canada
 - Ricky Johnston (born 1943), Australian politician
 
Other
- Richard C. Johnston, U.S. Air Force general
 - Richard F. Johnston (1925–2014), American ornithologist, academic and author
 - Richard Johnston (composer) (1917–1997), Canadian composer, arts administrator, music critic, and music educator
 - Richard Johnston (musician), American blues musician
 - Rich Johnston, comic book columnist
 - Richard Malcolm Johnston (1822–1898), American writer and educator
 - Dick Johnston (1863–1934), baseball player
 - Dick Johnston (journalist) (1919–2008), Canadian sports journalist
 - Ritchie Johnston (1931–2001), New Zealand Olympic cyclist