Imperium: The Philosophy of History and Politics

Imperium: The Philosophy of History and Politics is a 1948 book by Francis Parker Yockey, using the pen name Ulick Varange, that argues for a pan-European fascist empire. It was originally published in the United Kingdom in 1948 by Westropa Press. Later that year, the book's rights were bought by American antisemite Willis Carto, who republished the book in several editions with his Noontide Press starting in 1963. The book sold over 20,000 copies in the United States, and has been translated into several languages.

Imperium presents an antisemitic theory of history, asserts that the Holocaust was a hoax, and is dedicated to "the hero of the Second World War", meant to describe Adolf Hitler. The book was influential on the far-right and on antisemitic thought.