John Elwill

John Elwill may refer to:


 * Sir John Elwill, 1st Baronet (1643–1717), MP for Bere Alston
 * Sir John Elwill, 2nd Baronet (died 1727), of the Elwill baronets
 * Sir John Elwill, 4th Baronet (died 1778), MP for Guildford