Freebooter may refer to:
Marine freebooters, or pirates Filibuster (military), an individual who engages in unauthorized warfare against foreign countries Rapparee, the Irish usage Meadowbrook Freebooters, American polo team Freebooter (comics), a fictional character Freebooters F.C., a former Irish football team A form of copyright infringement in which works originally posted to social media are copied and re-uploaded without permission or attribution.