John Case

• John Case (Aristotelian writer), English Aristotelian writer
• John Case (astrologer), English astrologer and quack doctor
• John Case (athlete), American track and field athlete
• John Case (novelist), pseudonym for Jim Hougan and Carolyn Hougan
• John Higley Case, American politician from Minnesota
• John S. Case, Republican politician from Maine
• John Carol Case, English baritone