Joan Montseny i Carret (1864–1942), who also wrote under the pseudonym Federico Urales, was a Catalan anarchist activist and journalist from Spain.

He worked on Alejandro Lerroux's El Progreso before founding the periodicals La Revista Blanca (1898) and Tierra y Libertad (1902).

[2] In the Primo de Rivera administration, Montseny settled in Barcelona and restarted La Revista Blanca, which he ran between 1923 and 1936.

[3] His family's orthodox anarchism chafed against the syndicalism of the Confederación Nacional del Trabajo (CNT) labor union.

He nevertheless influenced the CNT as a member of the Popular Front in 1936 and through his daughter, Federica Montseny, who served in Francisco Largo Caballero's cabinet.