John Lockhart

• John Lockhart-Ross, known as John Lockhart from 1721 to 1760, Royal Navy officer
• John Gibson Lockhart, Scottish writer and editor
• John Ingram Lockhart, British politician, also known as John Wastie
• John Ingram Lockhart , English translator and radical, nephew of the politician
• John Bruce Lockhart, Scottish cricketer and schoolmaster
• John Lockhart , Australian judge in the Federal Court of Australia