John Griffith
John Griffith may refer to:
- John Griffith (of Cefnamlwch) MP for Carnarvon 1604
- John Griffith (MP for Beaumaris)
- John Griffith junior MP for Carnarvonshire 1640
- John Griffith (1687–1739), Welsh MP for Caernarvonshire
- John Griffith (engineer), Irish civil engineer
- John Griffith (aviator), American World War I flying ace
- John H. Griffith, test pilot
- John Wynne Griffith, MP for Denbigh
- John Jones (martyr), also known as John Griffith
- John G. Griffith (1878–?), American football, basketball, and baseball coach at University of Idaho, University of Iowa, Oklahoma A&M University, New Mexico A&M
- John Griffith (monk)
- 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
- Johnny Griffith (musician)