Joannes Antonius Baars (Amsterdam, 30 June 1903 – Andijk, 22 April 1989) was a leading Dutch fascist during the 1930s. During the 1920s Baars emerged as part of the group associated with De Bezem, a fascist journal aimed at the poor. The magazine split in 1930 and Baars supported Alfred Haighton over H.A. Sinclair de Rochemont, joining Haighton's Fascistische Jongeren Bond. The two quarrelled in 1932 however and the rabble-rousing Baars soon set up his own movement, the General Dutch Fascist League (ANFB). The stated purpose of this new group was to unite the various strands of fascism within the Netherlands under a single umbrella.