Liber is a god of wine, male fertility, agriculture and freedom, in ancient Roman religion.

Liber may also refer to:

Liber (studio), a Japanese animation studio Liber, Indiana, a small town in the United States Libeř, a municipality and village in the Czech Republic , a Polish music producer and rapper Association of European Research Libraries () Ossanda Liber, Portuguese politician of Angolan descent Liber, a publisher in Sweden owned by Infinitas Learning

See also Freedom (disambiguation), liber in Latin Liberation (disambiguation) Liberia (disambiguation) Liberalism Libertarianism Liberty Libre (disambiguation)