Victor Gollancz Ltd was a major British book publishing house of the twentieth century and continues to publish science fiction and fantasy titles as an imprint of Orion Publishing Group.

Sir Victor Gollancz was a British publisher and humanitarian. Gollancz was known as a supporter of left-wing politics. His loyalties shifted between liberalism and communism; he defined himself as a Christian socialist and an internationalist. He used his publishing house chiefly to promote pacifist and socialist non-fiction, and also launched the Left Book Club.