Antti Johannes Kaarne (27 November 1875, Messukylä - 14 July 1924, Turku; surname until 1906 Karlsson) was a Finnish industrial worker, smallholder, newspaper editor and politician.
He was a member of the Parliament of Finland, representing from 1908 to 1911 the Christian Workers' Union of Finland (SKrTL) and from 1922 to 1923 the Socialist Workers' Party of Finland (SSTP).