John or Jack Shaw may refer to:

Entertainment

• John Shaw (actor), American actor who portrayed Mr. Huff in Diary of a Wimpy Kid: Rodrick Rules
• John Shaw (baritone) (1924–2003), operatic baritone
• John Shaw (broadcaster) (1957–2013), English radio broadcaster
• John Shaw (painter) (1948–2019), American/Canadian artist
• John Shaw (photographer) (born 1944), American nature photographer
• John Shaw (stone carver) (born 1952), of Saxby, Lincolnshire
• John K. Shaw (born 1968), Scottish chess player

Politics

• John Shaw (died 1690) (1617–1690), English politician
• Sir John Shaw, 1st Baronet (1615–1680), English merchant and politician
• Sir John Shaw, 3rd Baronet (c. 1679–1752), Scottish Whig politician
• John Shaw (Canadian politician) (1837–1917), Canadian politician and lawyer
• John Shaw (public servant) (1902–1983), New South Wales public servant
• John A. Shaw (1939-2020), U.S. government official
• John G. Shaw (1859–1932), U.S. Representative from North Carolina
• John Valentine Wistar Shaw (1894–1982), British colonial administrator

Religion

• John Shawe or Shaw (1608–1672), English Puritan minister
• John Shaw (bishop) (1863–1934), American Roman Catholic archbishop
• John Luis Shaw (1870–1952), Seventh-day Adventist leader
• Jerome Shaw (John Robert Shaw, born 1946), bishop of the Russian Orthodox Church Outside of Russia

Sports

• John Shaw (field hockey) (born 1962), England/GB field hockey international
• John Shaw (footballer, born 1886) (1886–1916), English footballer for Sunderland
• Jack Shaw (footballer, born 1916) (1916–1973), English footballer for Birmingham
• Jack Shaw (footballer, born 1924) (1924–2011), English footballer for Rotherham United and Sheffield Wednesday
• John Shaw (footballer, born 1954), Scottish footballer for Bristol City and Exeter City
• John Shaw (hurler) (born 1982), Irish hurler
• John Shaw (Kent cricketer) (1832–1912), English cricketer
• John Shaw (rugby league) (1934–2010), rugby league footballer for Great Britain and Halifax RLFC
• John Shaw (rugby union) (born 1968), Scottish rugby union player, coach and referee
• John Shaw (sailor) (1937–1995), Australian sailor and Olympic champion
• John Shaw (Victoria cricketer) (1931–2018), Australian cricketer
• Jack F. Shaw (1938–2009), Western Michigan University track & cross-country coach
• Jock Shaw (1912–2000), Scottish footballer for Airdrieonians and Rangers

Other

• John Shaw (cabinetmaker) (1745–1829), Annapolis cabinetmaker
• John Shaw (naval officer) (1773–1823), U.S. Navy captain
• John Shaw (oil driller), American oil driller, businessman and photographer
• John Shaw (slave trader), English slave trader and mayor of Liverpool
• John Shaw Sr. (1776–1832), English architect
• John Shaw (physician) (1792–1827), Scottish surgeon and anatomist
• John Shaw Jr. (1803–1870), English architect
• John Shaw, killed in the Canyon Diablo shootout in 1905, and subject of a famous postmortem photograph
• John Shaw, accomplice of English murderer Geoffrey Evans
• John Cargyll Shaw (1845–1900), neurologist
• John E. Shaw, U.S. Space Force general
• John James McIntosh Shaw, Scottish military surgeon
• John MacKay Shaw (1897–1984), business executive, bibliophile, philanthropist, and writer
• John Malach Shaw (1931–1999), U.S. federal judge
• John S. Shaw, chairman of Sonat Inc., namesake of the Transocean John Shaw
• Sir Jack Shaw (accountant) (John Calman Shaw, 1932–2021), Scottish banker and academic
• Transocean John Shaw, a 1982 semi-submersible drilling rig