John Carmichael-Anstruther may refer to:

• Sir John Carmichael-Anstruther, 5th Baronet (1785–1818), known as John Anstruther until 1817, MP for Anstruther Easter Burghs 1811–1818
• Sir John Carmichael-Anstruther, 6th Baronet (1818–1831), shot dead at Eton College

• Sailing at the 2004 Summer Olympics – Tornado class
• Sailing at the 2004 Summer Olympics – Women's 470 class
• Sailing at the 2004 Summer Olympics – Women's sailboard
• Sailing at the 2004 Summer Olympics – Yngling class
• Sailing at the 2006 Asian Games – Hobie 16
• Sailing at the 2006 Asian Games – Laser 4.7
• Sailing at the 2006 Asian Games – Laser Radial
• Sailing at the 2006 Asian Games – Match racing
• Sailing at the 2006 Asian Games – Men's 420
• Sailing at the 2006 Asian Games – Men's 470
• Sailing at the 2006 Asian Games – Men's Laser
• Sailing at the 2006 Asian Games – Men's Mistral heavy
• Sailing at the 2006 Asian Games – Men's Mistral light
• Sailing at the 2006 Asian Games – Men's Optimist
• Sailing at the 2006 Asian Games – Women's 420
• Sailing at the 2006 Asian Games – Women's 470
• Sailing at the 2006 Asian Games – Women's Mistral
• Sailing at the 2006 Asian Games – Women's Optimist
• Sailing at the 2006 Central American and Caribbean Games
• Sailing at the 2008 Summer Olympics – 49er class
• Sailing at the 2008 Summer Olympics – Finn class
• Sailing at the 2008 Summer Olympics – Men's 470 class
• Sailing at the 2008 Summer Olympics – Men's Laser class
• Sailing at the 2008 Summer Olympics – Men's sailboard
• Sailing at the 2008 Summer Olympics – Star class