John Long

• J. H. Long
• John A. Long
• John Andrew Long
• John B. Long
• John David Long
• John Davis Long
• John Dixon Long
• John H. Long (chemist)
• John H. Long (political candidate)
• John Herbert Long
• John Long (Gaelic footballer)
• John Long (Irish politician)
• John Long (North Carolina politician)
• John Long (artist)
• John Long (basketball coach)
• John Long (basketball)
• John Long (blues musician)
• John Long (c. 1517 – c. 1600/1602)
• John Long (climber)
• John Long (computer scientist)
• John Long (evangelist)
• John Long (footballer)
• John Long (priest)
• John Long of Draycot Cerne
• John Longe
• John Luther Long
• John Varah Long
• Johnny Long
• Johnny Long (American football)
• Johnny Long (musician)
• Midleton (Parliament of Ireland constituency)