John Welsh
John Welsh may refer to:
- John Welsh of Ayr (1568–1622), religious leader
- John Welsh of Irongray, religious leader
- John Welsh (meteorologist) (1824–1859), FRS, Superintendent of Kew Observatory
- John Welsh (actor) (1904–1985), Irish actor
- John Welsh (footballer) (born 1984), English football player for Preston North End
- John Welsh (diplomat) (1805–1886), American diplomat
- John Welsh (bishop) (1856–1916), Bishop of Trinidad and Tobago, 1904–1916
See also
- John Welch (disambiguation)
- Jonathan Welsh (1947–2005), Canadian actor
- Jonathan Welsh (American football) (born 1982), former American football defensive end