John Appleby

John Appleby may refer to:


 * John Appleby (inventor) (1840–1917), American inventor of knotting device to bind grain bundles with twine
 * John Appleby (author), 20th-century American author of pulp novels including Conquered City
 * Sir John Appleby, detective created by Michael Innes in the 1930s who appeared in many novels and short stories
 * John Appleby (economist), Chief economist, The Nuffield Trust