Imperialism is a policy or ideology of extending the authority of a country over other countries and people.
Imperialism may also refer to:
Imperialism, the Highest Stage of Capitalism, a 1917 book by Lenin Imperialism (Hobson book), a 1902 book by John A. Hobson Imperialism (speech), a 1900 speech by William Jennings Bryan Imperialism (video game), a 1997 turn-based strategy game Theories of imperialism, theories, some non-Marxist, but many Marxist, concerning the transfer of profit between countries