Sir Edward Montague Compton Mackenzie (pronounced /'k?mpt?n m?'k?nz?/; 17 January 1883, West Hartlepool, England – 30 November 1972, Edinburgh, Scotland) was an English-born Scottish novelist and nationalist.

Compton Mackenzie was born into a theatrical family. His father, Edward Compton, was an actor and theatre company manager; his sister, Fay Compton, starred in many of James M. Barrie's plays, including Peter Pan, or The Boy Who Wouldn't Grow Up. His grandfather was Henry Compton, a well-known Shakespearean actor of the Victorian era. He was educated at St Paul's School and Magdalen College, Oxford where he graduated with a degree in Modern History.