Three Worlds

Three Worlds can refer to:


 * Popper's three worlds, an ontological framework by Karl Popper
 * Three Worlds (Escher), a print by M. C. Escher
 * Three Worlds (book), an 1877 religious book
 * Three Worlds (film), a 2012 French film
 * Three Worlds Theory, the Maoist concept
 * Three-world model, the western political concept