John Griffith may refer to:

Clergymen and monks John Griffith (Baptist minister) (1622?–1700), English General Baptist minister John Griffith (monk) (fl. 1553), Welsh præmonstratensian and Cistercian monk John Griffith (priest) (1818/19–1885), Anglican priest in south Wales John Jones (martyr) (died 1598), also known as John Griffith

Musicians John Thomas Griffith (born 1960), American singer-songwriter with the band Cowboy Mouth Johnny Griffith (musician) (1936–2002), African-American musician

Pilots John H. Griffith (1905–2011), test pilot John Sharpe Griffith (1898–1974), American First World War flying ace

Politicians John Griffith (died 1580), MP for Flintshire John Griffith (of Plas Mawr) (died 1609), MP for Carnarvon 1571, 1572 and 1604 John Griffith (of Llŷn), MP for Carnarvonshire 1640 John Griffith (MP for Beaumaris) (1591–1642), Welsh politician John Griffith (MP for Caernarvon) (1662–1687), MP for Carnarvon 1685 John Griffith (MP for Chester), represented Chester John Griffith (1687–1739), Welsh MP for Caernarvonshire John Wynne Griffith (1763–1834), MP for Denbigh John Griffith (governor of Bombay), governor of Bombay, 1795 John K. Griffith (1882–1942), U.S. representative from Louisiana

Sportsmen John G. Griffith (1880–1948), American football, basketball, and baseball coach at University of Idaho, University of Iowa, Oklahoma A&M University, New Mexico A&M John L. Griffith (1877–1944), American football, basketball, baseball, and track athlete, coach, and college athletics administrator, first commissioner of the Big Ten Conference Johnny Griffith (coach) (1924–2003), American football coach at South Georgia College and the University of Georgia

Other people John Griffith (engineer) (1848–1938), Irish civil engineer John Stanley Griffith (1928–1972), British chemist and biophysicist John Griffith (journalist) (1821–1877), Welsh language journalist J. A. G. Griffith (John Aneurin Grey Griffith, 1918–2010), Welsh legal scholar John V. Griffith (born 1947), former president of Presbyterian College and Lyon College John William Griffith (1789–1855), English architect and surveyor

Other uses USS John Griffith

See also Griffith John (1831–1912), Welsh Christian missionary to China John Griffiths (disambiguation)