A number of people have been named John Murphy

• John Murphy (Alabama) was a 19th century Governor and Congressman from Alabama
• John Murphy (economist) is an economist who has studied Dow Theory
• John Murphy (Canadian politician) was a member of the Canadian House of Commons from 1993-1997
• John Murphy is a member of the Australian House of Representatives
• John Murphy (musician) formerly a member of The Associates and later SPK, currently collaborates with Douglas P. of Death in June and Boyd Rice.
• John Murphy (playwright) , Irish dramatist, author of The Country Boy .