John Good

John or Jack Good may refer to:

• I. J. Good (1916–2009), known as Jack, British statistician and cryptanalyst
• Jack Good (producer) (1931–2017), British television, theatre and music producer
• John Good (footballer) (1933–2005), English footballer
• John Good (Irish politician) (died 1941), Irish politician and company director
• John F. Good (1936–2016), FBI agent who created the Abscam sting operation
• John G. Good (born 1926), Pennsylvania politician
• John Jay Good (1827–1882), mayor of Dallas
• John Mason Good (1764–1827), English writer on medical, religious and classical subjects