Lars Johan Hierta (Swedish: [lɑːʂˈjûːan ˈjæ̂ʈːa]; 22 January 1801 – 20 November 1872) was a Swedish newspaper publisher, social critic, businessman and politician. He is best known as the founder of the newspaper Aftonbladet in 1830. Hierta was a leading agitator for political and social reform in Sweden during the 19th century. He is sometimes credited as the "father of the free press" in Sweden.