John Elkington

• John Elkington (business author), English businessman and author
• John Elkington (British [Army officer)], Lieutenant Governor of Guernsey
• John Ford Elkington, son of the above and also a British Army officer
• John Elkington (pilot), British fighter pilot
• John Simeon Colebrook Elkington, Australian public health advocate
• John A. Elkington, American real estate developer